<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.2 20190208//EN" "http://jats.nlm.nih.gov/publishing/1.2/JATS-journalpublishing1.dtd"><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" article-type="research-article" dtd-version="1.2" xml:lang="en">
    <front>
        <journal-meta>
            <journal-id journal-id-type="pmc">F1000Research</journal-id>
            <journal-title-group>
                <journal-title>F1000Research</journal-title>
            </journal-title-group>
            <issn pub-type="epub">2046-1402</issn>
            <publisher>
                <publisher-name>F1000 Research Limited</publisher-name>
                <publisher-loc>London, UK</publisher-loc>
            </publisher>
        </journal-meta>
        <article-meta>
            <article-id pub-id-type="doi">10.12688/f1000research.153625.3</article-id>
            <article-categories>
                <subj-group subj-group-type="heading">
                    <subject>Research Article</subject>
                </subj-group>
                <subj-group>
                    <subject>Articles</subject>
                </subj-group>
            </article-categories>
            <title-group>
                <article-title>The quality of life in Thai senior table tennis players</article-title>
                <fn-group content-type="pub-status">
                    <fn>
                        <p>[version 3; peer review: 1 approved with reservations, 1 not approved]</p>
                    </fn>
                </fn-group>
            </title-group>
            <contrib-group>
                <contrib contrib-type="author" corresp="no">
                    <name>
                        <surname>To-aj</surname>
                        <given-names>Oam</given-names>
                    </name>
                    <role content-type="http://credit.niso.org/">Conceptualization</role>
                    <xref ref-type="aff" rid="a1">1</xref>
                </contrib>
                <contrib contrib-type="author" corresp="yes">
                    <name>
                        <surname>Krajangkantamatr</surname>
                        <given-names>Sornpravate</given-names>
                    </name>
                    <role content-type="http://credit.niso.org/">Data Curation</role>
                    <role content-type="http://credit.niso.org/">Writing &#x2013; Review &amp; Editing</role>
                    <xref ref-type="corresp" rid="c1">a</xref>
                    <xref ref-type="aff" rid="a1">1</xref>
                </contrib>
                <contrib contrib-type="author" corresp="no">
                    <name>
                        <surname>Saenkla</surname>
                        <given-names>Pennapa</given-names>
                    </name>
                    <role content-type="http://credit.niso.org/">Formal Analysis</role>
                    <uri content-type="orcid">https://orcid.org/0009-0000-7023-7888</uri>
                    <xref ref-type="aff" rid="a2">2</xref>
                </contrib>
                <contrib contrib-type="author" corresp="no">
                    <name>
                        <surname>Putthasri</surname>
                        <given-names>Weerasak</given-names>
                    </name>
                    <role content-type="http://credit.niso.org/">Methodology</role>
                    <xref ref-type="aff" rid="a3">3</xref>
                </contrib>
                <contrib contrib-type="author" corresp="no">
                    <name>
                        <surname>Chanbanchong</surname>
                        <given-names>Navaporn</given-names>
                    </name>
                    <role content-type="http://credit.niso.org/">Project Administration</role>
                    <role content-type="http://credit.niso.org/">Resources</role>
                    <xref ref-type="aff" rid="a1">1</xref>
                </contrib>
                <contrib contrib-type="author" corresp="no">
                    <name>
                        <surname>Bumrungpanictarworn</surname>
                        <given-names>Apithai</given-names>
                    </name>
                    <role content-type="http://credit.niso.org/">Resources</role>
                    <role content-type="http://credit.niso.org/">Writing &#x2013; Original Draft Preparation</role>
                    <uri content-type="orcid">https://orcid.org/0000-0001-6365-9978</uri>
                    <xref ref-type="aff" rid="a1">1</xref>
                </contrib>
                <aff id="a1">
                    <label>1</label>Faculty of Social Sciences and Humanities, Mahidol University, Salaya, Nakhon Pathom, Thailand</aff>
                <aff id="a2">
                    <label>2</label>Faculty of Nursing, Mahidol University, Thailand, Thailand</aff>
                <aff id="a3">
                    <label>3</label>WEE HEALTH DEVELOPMENT, Thailand, Thailand</aff>
            </contrib-group>
            <author-notes>
                <corresp id="c1">
                    <label>a</label>
                    <email xlink:href="mailto:sornpravate.kra@mahidol.edu">sornpravate.kra@mahidol.edu</email>
                </corresp>
                <fn fn-type="conflict">
                    <p>No competing interests were disclosed.</p>
                </fn>
            </author-notes>
            <pub-date pub-type="epub">
                <day>14</day>
                <month>11</month>
                <year>2024</year>
            </pub-date>
            <pub-date pub-type="collection">
                <year>2024</year>
            </pub-date>
            <volume>13</volume>
            <elocation-id>1064</elocation-id>
            <history>
                <date date-type="accepted">
                    <day>11</day>
                    <month>11</month>
                    <year>2024</year>
                </date>
            </history>
            <permissions>
                <copyright-statement>Copyright: &#x00a9; 2024 To-aj O et al.</copyright-statement>
                <copyright-year>2024</copyright-year>
                <license xlink:href="https://creativecommons.org/licenses/by/4.0/">
                    <license-p>This is an open access article distributed under the terms of the Creative Commons Attribution Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.</license-p>
                </license>
            </permissions>
            <self-uri content-type="pdf" xlink:href="https://f1000research.com/articles/13-1064/pdf"/>
            <abstract>
                <sec>
                    <title>Background</title>
                    <p>
Table tennis presented a unique and accessible sport for people of all ages, particularly seniors compared to other sports.</p>
                </sec>
                <sec>
                    <title>Methods</title>
                    <p>This study utilized a quantitative with 136 Table tennis players those who registered for attending in the Thailand Master Table tennis Championships 2024 which hosted in January 2024 at Chiangmai. The questionnaire based on the measurement quality of life, WHOQOL Thai version, and analyzed using Descriptive statistics, Pearson Correlation.</p>
                </sec>
                <sec>
                    <title>Results</title>
                    <p>Pearson correlation coefficients between the scores of the quality of life in four dimensions and the overall score revealed significant correlations (p &lt; 0.01) with all dimensions, including physical health, psychological health, social relationships, and environmental health.</p>
                </sec>
                <sec>
                    <title>Conclusions</title>
                    <p>Playing Table tennis for senior in the tournament level helped to improve the quality of life in all domains.</p>
                </sec>
            </abstract>
            <kwd-group kwd-group-type="author">
                <kwd>Senior</kwd>
                <kwd>Table Tennis</kwd>
                <kwd>Quality of life</kwd>
                <kwd>physical health</kwd>
                <kwd>psychological health</kwd>
            </kwd-group>
            <funding-group>
                <award-group id="fund-1">
                    <funding-source>Nil</funding-source>
                </award-group>
                <funding-statement>The author(s) declared that no grants were involved in supporting this work.</funding-statement>
            </funding-group>
        </article-meta>
        <notes>
            <sec sec-type="version-changes">
                <label>Revised</label>
                <title>Amendments from Version 2</title>
                <p>We have revised our manuscript to align with comments given by reviewer 1 and 2. This new version highlighted 2 main topics as follows; 1. Providing the reason why we have categorized the QoL into Low, Middle and High. reason why we have categorized the QoL into Low, Middle and High and&#x00a0; 2. Expressing the&#x00a0;value of this study and indicating the specific data to demonstrate the specific effect of table tennis exercise on quality-of-life enhancement.</p>
            </sec>
        </notes>
    </front>
    <body>
        <sec id="sec5" sec-type="intro">
            <title>Introduction</title>
            <p>Participation in sports has been a well-established phenomenon with documented positive influences on quality of life (
                <xref ref-type="bibr" rid="ref15">Per&#x00e1;&#x010d;kov&#x00e1; &amp; Per&#x00e1;&#x010d;ek, 2020</xref>). Engaging in physical activity, a key component of sports participation, yielded a range of benefits for individuals. These included improved brain health, weight management, disease prevention, enhanced bone and muscle strength, and a greater capacity for performing daily activities (Centers for Disease Control and Prevention (CDC), 2023). Importantly, research has also shown that physical activity was highly effective in managing anxiety, depression symptoms, and distress across various elderly populations (
                <xref ref-type="bibr" rid="ref17">Singh et al., 2023</xref>).</p>
            <p>Quality of life, a multifaceted concept encompassing physical, psychological, social, and environmental well-being (
                <xref ref-type="bibr" rid="ref26">World Health Organization [WHO], 2024</xref>), reflects an individual&#x2019;s perception of their life situation shaped by cultural values, goals, expectations, and concerns (
                <xref ref-type="bibr" rid="ref1">Cai et al., 2021</xref>). Research consistently demonstrates a positive link between physical activity and quality of life (
                <xref ref-type="bibr" rid="ref7">Gavala-Gonz&#x00e1;lez et al., 2022</xref>). Notably, participation in sports, a specific type of physical activity, offers distinct advantages for both physical and psychological health, as well as social outcomes in adults (
                <xref ref-type="bibr" rid="ref6">Eather et al., 2023</xref>). Several instruments exist for measuring quality of life, such as the Quality-of-Life Scale (
                <xref ref-type="bibr" rid="ref23">Flanagan, 1978</xref>), the McGill Quality of Life questionnaire &#x2013; the World Health Organization Quality of Life Instrument (WHO, 2012), the Health-Related Quality of Life Questionnaire (Centers for Disease Control and Prevention [CDC], 2000), and Expanded (
                <xref ref-type="bibr" rid="ref25">Cohen et al., 2019</xref>).</p>
            <p>
Table tennis emerged as a unique and accessible sport for people of all ages, particularly seniors. Compared to other sports, it offered a lower risk of injury, making it suitable for individuals with joint limitations (
                <xref ref-type="bibr" rid="ref11">Killerspin, 2024</xref>). Table tennis also provided benefits for youth in various aspects, considering the social ecology, including individual factors, social support networks, and the physical environment where the game is played (
                <xref ref-type="bibr" rid="ref22">Xiao et al., 2020</xref>). Additionally, table tennis was relatively inexpensive, required minimal space, and could be played throughout one&#x2019;s lifespan, making it an attractive option for many (
                <xref ref-type="bibr" rid="ref18">Sportanddev, 2021</xref>).</p>
            <p>Several studies explored the positive effects of table tennis across different age groups. Research by 
                <xref ref-type="bibr" rid="ref12">Naderi et al. (2018)</xref> suggested that regular table tennis training improved lipid profiles and body composition in aging men. Similarly, 
                <xref ref-type="bibr" rid="ref28">Pradas et al. (2021)</xref> found that children playing table tennis regularly for two years exhibited better physical fitness and the development of bone, compared to those who didn&#x2019;t regularly play. The benefits extended beyond physical health. 
                <xref ref-type="bibr" rid="ref4">Depr&#x00e1; et al. (2022)</xref> demonstrated that a twice-weekly table tennis program could improve agility and balance in physically active seniors. 
                <xref ref-type="bibr" rid="ref32">Ishiguro and Amano (2022)</xref> showed that playing table tennis affected many benefits to physical domain such as muscle strength, body composition, and physical performance. 
                <xref ref-type="bibr" rid="ref33">Zhang and Min (2022)</xref> indicated that the mental health of girls has been changed positively after joining the table tennis exercise. Finally, 
                <xref ref-type="bibr" rid="ref13">Olsson et al. (2020)</xref> showed that table tennis training was safe and feasible for individuals with Parkinson&#x2019;s disease, potentially improving balance, well-being, and self-reported physical activity levels.</p>
            <p>The previous reports indicated the positive impacts to quality of life from playing table tennis. However, they had never been assessed in Thailand. Therefore, this study investigates the quality of life of senior table tennis players in Thailand, particularly focusing on the association between quality-of-life aspects and players characteristics. This analysis will provide deeper information on the effect of competing table tennis and quality of life of senior players in Thailand.</p>
            <sec id="sec6">
                <title>Objectives</title>
                <p>

                    <list list-type="order">
                        <list-item>
                            <label>1.</label>
                            <p>To assess the senior Table tennis players&#x2019; quality of life in Thailand</p>
                        </list-item>
                        <list-item>
                            <label>2.</label>
                            <p>To study the association of the quality-of-life domains and its players characteristics</p>
                        </list-item>
                    </list>
                </p>
            </sec>
        </sec>
        <sec id="sec7" sec-type="methods">
            <title>Methods</title>
            <p>Tennis Championships 2024. The questionnaire used for data collection was based on the WHOQOL measurement of quality of life. The WHOQOL-BREF tool consists of 26 items, which are divided into four domains: physical health, psychological health, social relationships, and environment. Each item is scored on a 5-point Likert scale, with higher scores indicating a better quality of life. The scores for each domain are calculated by summing the scores of the individual items within that domain. The overall score is calculated by summing the scores of all the items. The raw score was used as final score. According to the standard scoring criteria of WHOQOL-BREF, it was not recalculated into 0-100 scale. The quantitative analysis involved both descriptive statistics to describe the characteristics of the participants, Pearson correlation to examine the relationships between quality-of-life dimensions and overall score, and Chi-square to determine the association of the characteristic with quality of life in overall domains. The WHOQOL-BREF scores were categorized into three group of QoL scores i.e., Low, Middle, and High, to make it more simplified interpretable and to provide a structured way of well-being assessing in different independent domains. Thus, this research used the chi-square test to examine the relationship between variables in order to compare and further design tailored group interventions. Examples of items include: &#x201c;How satisfied are you with your current health?&#x201d; and &#x201c;How satisfied are you with your sleep quality&#x201d; (
                <xref ref-type="bibr" rid="ref27">To-aj Oam et al., 2024</xref>). The association between the WHOQOL-BREF overall and domains was assessed using Pearson correlation analysis. The results indicated significant correlations between the quality-of-overall score and each domain (physical health, psychological health, social relationships, and environmental health) measured by the WHOQOL-BREF in 
                <xref ref-type="table" rid="T3">Table 3</xref>.</p>
            <sec id="sec1.1">
                <title>Ethics and consent</title>
                <p>This research was ethically approved by the Office of the Committee for Research Ethics (Social Sciences), Faculty of Social Sciences and Humanities, Mahidol University with the approval number 2023/205.3011. The Committee of Research Ethics (Social Sciences) is in full compliance with International Guidelines of Human Resource Protection such as declaration of Helsinki, The Belmont Report, and CIOMS guidelines. Written consent was obtained from all participants involved in this study. They were clearly instructed about the project and informed that the collected data would be used for publishing the findings. Participants were also given the opportunity to withdraw from the study at any time. However, none of the participants chose to withdraw and they continued until the completion of the study.</p>
            </sec>
            <sec id="sec8">
                <title>Participants</title>
                <p>The participants were all Table tennis players (136 Table tennis players) those who registered for attending in the Thailand Master Table tennis Championships 2024 which hosted in January 2024 at Chiang Mai, Thailand. The three experienced researchers have been trained and practiced for the data collection protocol to ensure the research process quality. All the participants were collected the data before the competition began. Each participant spent about 30 minutes for completing the questionnaire (
                    <xref ref-type="bibr" rid="ref27">To-aj, Oam et al., 2024</xref>). All the participants were closely assisted by the research assistants regarding to the questionnaire explanation. All questionnaires have been proved by the researchers to confirm all items were answered.</p>
            </sec>
            <sec id="sec9">
                <title>Instrument</title>
                <p>The questionnaire based on the measurement quality of life, WHOQOL which consisted of 4 dimensions: Physical Health, Psychological Health, Social Relationship, and Environmental Health. The instrument was measured using the five-items of the WHOQOL measured on a five-point Likert scale.</p>
            </sec>
            <sec id="sec10">
                <title>Analysis</title>
                <p>Descriptive statistics, Pearson Correlation by using SPSS version 22 (
                    <ext-link ext-link-type="uri" xlink:href="https://www.ibm.com/spss">https://www.ibm.com/spss</ext-link>).</p>
            </sec>
        </sec>
        <sec id="sec11" sec-type="results">
            <title>Results</title>
            <p>As a pilot study, the primary objective was to explore the relationship between playing table tennis and the quality of life of senior players and to assess the feasibility of conducting a more extensive study in the future. This serves as crucial initial steps in the research process, providing valuable preliminary data and insights that can inform the development of larger, more substantive investigations. While the current study may have limitations in terms of its scope and depth, it lays the groundwork for future research endeavors and can contribute to the refinement of research methodologies and the identification of areas for further exploration.</p>
            <sec id="sec12">
                <title>Assessment of the senior Table tennis players&#x2019; quality of life in Thailand</title>
                <p>The study found that a majority of respondents were male (61.03%). The average age of participants was 51.56 years, with ages ranging from 40 to 76 years old. The largest group (77.94%) fell within the 40-59 age range. Most respondents (58.82%) held a bachelor&#x2019;s degree. In terms of employment, the majority (44.85%) were self-employed. Notably, a high proportion (87.50%) reported no history of illness. These details were further presented in 
                    <xref ref-type="table" rid="T1">
Table 1</xref>.</p>
                <table-wrap id="T1" orientation="portrait" position="float">
                    <label>
Table 1. </label>
                    <caption>
                        <title>Number, percentage, and individual characteristics of the senior Table tennis players (N=136).</title>
                    </caption>
                    <table content-type="article-table" frame="hsides">
                        <thead>
                            <tr>
                                <th align="left" colspan="1" rowspan="1" valign="top">Individual characteristics</th>
                                <th align="left" colspan="1" rowspan="1" valign="top">Number</th>
                                <th align="left" colspan="1" rowspan="1" valign="top">
Percentage</th>
                            </tr>
                        </thead>
                        <tbody>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="middle">Gender</td>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="middle">&#x2003;Male</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">83</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">61.03</td>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="middle">&#x2003;Female</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">53</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">38.97</td>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="middle">Average age (Min-Max, SD.)</td>
                                <td align="left" colspan="2" rowspan="1" valign="middle">51.56 (40-76, 9.16)</td>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="middle">Age (yrs.)</td>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="middle">&#x2003;40-59</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">106</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">77.94</td>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="middle">&#x2003;60 or over</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">30</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">22.06</td>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="middle">Education</td>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="middle">&#x2003;Grade 1-6</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">2.21</td>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="middle">&#x2003;Grade 7-12</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">12</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">8.82</td>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="middle">&#x2003;Vocational degree</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">9</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">6.62</td>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="middle">&#x2003;Bachelor degree</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">80</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">58.82</td>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="middle">&#x2003;Master degree</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">28</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">20.59</td>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="middle">&#x2003;Others</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">4</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">2.94</td>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="middle">Occupation</td>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="middle">&#x2003;Farmer</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">1</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.74</td>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="middle">&#x2003;Civil servant</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">36</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">26.47</td>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="middle">&#x2003;State enterprise</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">8</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">5.88</td>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="middle">&#x2003;Company employee</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">16</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">11.76</td>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="middle">&#x2003;Business owner</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">61</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">44.85</td>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="middle">&#x2003;Other</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">14</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">10.29</td>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="middle">Illness</td>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="middle">&#x2003;No</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">119</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">87.50</td>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="middle">&#x2003;Yes</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">17</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">12.50</td>
                            </tr>
                        </tbody>
                    </table>
                </table-wrap>
                <p>The study investigated the quality of life using the WHOQOL-BREF Thai version. The average scores for the four dimensions were: physical health (26.35), psychological health (23.58), social relationships (11.07), and environmental health (29.32). The overall quality of life score was 97.79, suggesting a good quality of life for the participants. Details were presented in 
                    <xref ref-type="table" rid="T2">
Table 2</xref>.</p>
                <table-wrap id="T2" orientation="portrait" position="float">
                    <label>
Table 2. </label>
                    <caption>
                        <title>Average scores of the senior Table tennis players&#x2019; quality of life each dimension (N=136).</title>
                    </caption>
                    <table content-type="article-table" frame="hsides">
                        <thead>
                            <tr>
                                <th align="left" colspan="1" rowspan="2" valign="top">Quality of life Dimension</th>
                                <th align="left" colspan="2" rowspan="1" valign="top">Score</th>
                                <th align="left" colspan="1" rowspan="2" valign="top">

                                    <inline-formula>

                                        <mml:math display="inline">
                                            <mml:mover accent="true">
                                                <mml:mi mathvariant="bold">X</mml:mi>
                                                <mml:mo stretchy="true">&#x00af;</mml:mo>
                                            </mml:mover>
                                        </mml:math>
</inline-formula>
</th>
                                <th align="left" colspan="1" rowspan="2" valign="top">
SD</th>
                            </tr>
                            <tr>
                                <th align="left" colspan="1" rowspan="1" valign="top">Possible score</th>
                                <th align="left" colspan="1" rowspan="1" valign="top">
Actual score (Max-Min)</th>
                            </tr>
                        </thead>
                        <tbody>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="top">Physical Health</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">7-35</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">19-34</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">26.35</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">3.35</td>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="top">Psychological Health</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">6-30</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">15-30</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">23.58</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">3.12</td>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="top">Social Relationship</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">3-15</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">6-15</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">11.07</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">1.86</td>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="top">Environmental Health</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">8-40</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">16-40</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">29.32</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">4.46</td>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="top">Overall Quality of Life</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">
                                    <bold>26-130</bold>
</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">
                                    <bold>60-126</bold>
</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">
                                    <bold>97.79</bold>
</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">
                                    <bold>11.95</bold>
</td>
                            </tr>
                        </tbody>
                    </table>
                </table-wrap>
            </sec>
            <sec id="sec13">
                <title>The association of with characteristic with quality of life in overall domains</title>
                <p>When considering the physical health dimension, it was found to be correlated with the psychological health dimension at a statistically significant level of 0.01. The Pearson correlation coefficient (r) was 0.704, indicating a high level of correlation, and they were a direct variation. When considering the social relationship dimension, it was found to be correlated with the environmental health dimension at a statistically significant level of 0.01. The Pearson correlation coefficient (r) was 0.708, indicating a high level of correlation, and they were also a direct variation. They were displayed in 
                    <xref ref-type="table" rid="T3">Table 3</xref>.</p>
                <table-wrap id="T3" orientation="portrait" position="float">
                    <label>
Table 3. </label>
                    <caption>
                        <title>The analysis of Pearson correlation coefficients between the scores of the quality of life each dimension and the overall quality of life scores (N=136).</title>
                    </caption>
                    <table content-type="article-table" frame="hsides">
                        <thead>
                            <tr>
                                <th align="left" colspan="1" rowspan="1" valign="top"/>
                                <th align="left" colspan="1" rowspan="1" valign="top">Physical Health</th>
                                <th align="left" colspan="1" rowspan="1" valign="top">Psychological Health</th>
                                <th align="left" colspan="1" rowspan="1" valign="top">Social Relationship</th>
                                <th align="left" colspan="1" rowspan="1" valign="top">Environmental Health</th>
                                <th align="left" colspan="1" rowspan="1" valign="top">
Overall Quality of Life</th>
                            </tr>
                        </thead>
                        <tbody>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="top">Physical Health</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">1</td>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="top">Psychological Health</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">0.704**</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">1</td>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="top">Social Relationship</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">0.526**</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">0.578**</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">1</td>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="top">Environmental Health</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">0.601**</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">0.683**</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">0.708**</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">1</td>
                                <td colspan="1" rowspan="1"/>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="top">Overall Quality of life</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">0.827**</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">0.866**</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">0.777**</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">0.908**</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">1</td>
                            </tr>
                        </tbody>
                    </table>
                    <table-wrap-foot>
                        <p>p-value &lt;0.05*, &lt;0.01**, &lt;0.001***.</p>
                    </table-wrap-foot>
                </table-wrap>
                <p>When considering the individual factors, the respondents working in private sector needed to be focused on. The study revealed that this group of respondents tend to have higher quality of life levels in the psychological health dimension, ranging from moderate to high, compared to other occupational groups with statistical significance (p &lt;0.001***). The study also revealed that the respondents working in private sector tend to have a moderate level of quality of life in the social relationship dimension compared to other occupational groups. On the other hand, civil servants have a higher level of quality of life in the social relationship dimension compared to other occupational groups with statistical significance (p &lt; 0.023*). Moreover, the same group tend to have a moderate and high level of quality of life in the social relationship dimension compared to other occupational groups with statistical significance (p &lt; 0.038*). All details were demonstrated in 
                    <xref ref-type="table" rid="T4">Table 4</xref>.</p>
                <table-wrap id="T4" orientation="portrait" position="float">
                    <label>
Table 4. </label>
                    <caption>
                        <title>Individual factors associated with quality of life in each domain among senior Table tennis players.</title>
                    </caption>
                    <table content-type="article-table" frame="hsides">
                        <thead>
                            <tr>
                                <th align="left" colspan="1" rowspan="3" valign="top">Individual characteristics</th>
                                <th align="left" colspan="10" rowspan="1" valign="top">Domains of quality of life</th>
                            </tr>
                            <tr>
                                <th align="left" colspan="2" rowspan="1" valign="top">Physical Health</th>
                                <th align="left" colspan="2" rowspan="1" valign="top">Psychological Health</th>
                                <th align="left" colspan="2" rowspan="1" valign="top">Social Relationship</th>
                                <th align="left" colspan="2" rowspan="1" valign="top">Environmental Health</th>
                                <th align="left" colspan="2" rowspan="1" valign="top">Overall</th>
                            </tr>
                            <tr>
                                <th align="left" colspan="1" rowspan="1" valign="top">Mean</th>
                                <th align="left" colspan="1" rowspan="1" valign="top">Std.</th>
                                <th align="left" colspan="1" rowspan="1" valign="top">Mean</th>
                                <th align="left" colspan="1" rowspan="1" valign="top">Std.</th>
                                <th align="left" colspan="1" rowspan="1" valign="top">Mean</th>
                                <th align="left" colspan="1" rowspan="1" valign="top">Std.</th>
                                <th align="left" colspan="1" rowspan="1" valign="top">Mean</th>
                                <th align="left" colspan="1" rowspan="1" valign="top">Std.</th>
                                <th align="left" colspan="1" rowspan="1" valign="top">Mean</th>
                                <th align="left" colspan="1" rowspan="1" valign="top">
Std.</th>
                            </tr>
                        </thead>
                        <tbody>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="middle">Gender</td>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="middle">Male</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.528</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.448</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.860</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.567</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.670</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.599</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.650</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.513</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.677</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.532</td>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="middle">Female</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.824</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">2.221</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.747</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.628</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.723</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.656</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.688</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.624</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">
                                    <bold>3.746</bold>
                                    <xref ref-type="table-fn" rid="tfn1">

                                        <bold>*</bold>
                                    </xref>
                                </td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">
                                    <bold>1.032</bold>
</td>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="middle">Age (yrs.)</td>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="middle">59 or under</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.695</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">1.600</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.788</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.586</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.732</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.623</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.645</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.566</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">
                                    <bold>3.715</bold>
                                    <xref ref-type="table-fn" rid="tfn1">

                                        <bold>*</bold>
                                    </xref>
                                </td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">
                                    <bold>0.843</bold>
</td>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="middle">60 or over</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.461</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.438</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.913</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.614</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.544</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.596</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.737</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.528</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.663</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.568</td>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="middle">Education</td>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="middle">Secondary school or under</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">4.495</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.176</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.986</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.765</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.577</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.886</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.600</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.648</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.914</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.618</td>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="middle">Vocational Degree/Bachelor Degree</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.491</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.418</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.752</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.564</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.629</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.576</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.584</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.532</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.614</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.522</td>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="middle">Master Degree or over</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.669</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.327</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.912</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.567</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.916</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.555</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.921</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.518</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">
                                    <bold>4.083</bold>
                                    <xref ref-type="table-fn" rid="tfn1">

                                        <bold>*</bold>
                                    </xref>
                                </td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">
                                    <bold>0.491</bold>
</td>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="middle">Occupation</td>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="middle">Farmer/Civil servant</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.625</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.385</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">4.021</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.456</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.846</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.569</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.790</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.544</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.821</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.489</td>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="middle">Company employee/State enterprise</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.636</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.357</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.791</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.619</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.777</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.649</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.739</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.616</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.736</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.560</td>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="middle">Business owner/Other</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.655</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">1.901</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.722</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.623</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.586</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.622</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.580</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.536</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">
                                    <bold>3.908</bold>
                                    <xref ref-type="table-fn" rid="tfn1">

                                        <bold>*</bold>
                                    </xref>
                                </td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">
                                    <bold>0.920</bold>
</td>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="middle">Illness</td>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="middle">No</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.677</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">1.519</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.821</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.592</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.728</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.610</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.668</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.561</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">
                                    <bold>3.723</bold>
                                    <xref ref-type="table-fn" rid="tfn1">

                                        <bold>*</bold>
                                    </xref>
                                </td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">
                                    <bold>0.820</bold>
</td>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="middle">Yes</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.411</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.387</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.776</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.607</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.431</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.642</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.647</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.545</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">3.566</td>
                                <td align="left" colspan="1" rowspan="1" valign="middle">0.545</td>
                            </tr>
                        </tbody>
                    </table>
                    <table-wrap-foot>
                        <fn-group content-type="footnotes">
                            <fn id="tfn1">
                                <label>*</label>
                                <p>Higher value.</p>
                            </fn>
                        </fn-group>
                    </table-wrap-foot>
                </table-wrap>
                <p>
                    <xref ref-type="table" rid="T4">Table 4</xref> showed the overall mean scores for male and female. Mean score for female was 3.746 and mean score for male was 3.677. The difference of those mean scores were 0.069 (3.746 &#x2013; 3.677 = 0.069). Females had a higher mean (0.069) than males. The mean (0.052) for the 59 or underage group was higher than the 60 or over age group. The master&#x2019;s degree or over education group (0.169) had a higher mean than both the Secondary school or under group and the Vocational Degree/Bachelor Degree group (0.469). Business owners and others (0.087) had a higher mean than farmers/civil servants (0.172) and company employees/state enterprise employees. Those with no illness (0.157) had a higher mean than those with illness.</p>
                <p>When determining the association of the characteristic with quality of life in overall domain, it found that there was only one of the five variables studied had a significant association with overall quality of life (p-value &lt;0.05). The quality of life in overall was associated with career&#x2019;s variable p-value at 0.038. All details were demonstrated in 
                    <xref ref-type="table" rid="T5">Table 5</xref>.</p>
                <table-wrap id="T5" orientation="portrait" position="float">
                    <label>Table 5. </label>
                    <caption>
                        <title>The association of with characteristic with quality of life in overall domains (N=136).</title>
                    </caption>
                    <table content-type="article-table" frame="hsides">
                        <thead>
                            <tr>
                                <th align="left" colspan="1" rowspan="2" valign="top"/>
                                <th align="left" colspan="3" rowspan="1" valign="top">Quality of life in overall</th>
                                <th align="left" colspan="1" rowspan="2" valign="top">&#x03c7;
                                    <sup>2</sup>
                                </th>
                                <th align="left" colspan="1" rowspan="2" valign="top">
p-value</th>
                            </tr>
                            <tr>
                                <th align="left" colspan="1" rowspan="1" valign="top">
Low
                                    <break/>% (n)</th>
                                <th align="left" colspan="1" rowspan="1" valign="top">
Middle
                                    <break/>% (n)</th>
                                <th align="left" colspan="1" rowspan="1" valign="top">
High
                                    <break/>% (n)</th>
                            </tr>
                        </thead>
                        <tbody>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="top">
                                    <bold>Gender</bold>
</td>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td align="left" colspan="1" rowspan="1" valign="top">1.27</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">0.530</td>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="top">Male</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">100.00 (1)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">56.6 (30)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">63.41 (52)</td>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="top">Female</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">0.00 (0)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">43.4 (23)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">36.59 (30)</td>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="top">
                                    <bold>Age group</bold>
</td>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td align="left" colspan="1" rowspan="1" valign="top">0.56</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">0.758</td>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="top">40-59 years</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">100.00 (1)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">75.47 (40)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">79.27 (65)</td>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="top">60 years up</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">0.00 (0)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">24.53 (13)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">20.73 (17)</td>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="top">
                                    <bold>Educations</bold>
</td>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td align="left" colspan="1" rowspan="1" valign="top">10.23</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">0.116</td>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="top">Elementary and high school</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">100.00 (1)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">13.21 (7)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">8.54 (7)</td>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="top">Vocational certificate/Diploma</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">0.00 (0)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">3.77 (2)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">8.54 (7)</td>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="top">Bachelor&#x2019;s degree or more</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">0.00 (0)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">81.13 (43)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">79.27 (65)</td>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="top">Others</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">0.00 (0)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">1.89 (1)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">3.66 (3)</td>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="top">
                                    <bold>Careers</bold>
</td>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td align="left" colspan="1" rowspan="1" valign="top">10.14</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">0.038*</td>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="top">Government officer</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">0.00 (0)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">13.21 (7)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">35.37 (29)</td>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="top">Personal business</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">100.00 (1)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">56.60 (30)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">36.59 (30)</td>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="top">Others; famer, state enterprise, company employee</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">0.00 (0)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">30.19 (16)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">28.05 (23)</td>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="top">
                                    <bold>Illness</bold>
</td>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                                <td align="left" colspan="1" rowspan="1" valign="top">0.17</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">0.917</td>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="top">No</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">100.00 (1)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">86.79 (46)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">87.80 (72)</td>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                            </tr>
                            <tr>
                                <td align="left" colspan="1" rowspan="1" valign="top">Yes</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">0.00 (0)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">13.21 (7)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">12.20 (10)</td>
                                <td colspan="1" rowspan="1"/>
                                <td colspan="1" rowspan="1"/>
                            </tr>
                        </tbody>
                    </table>
                    <table-wrap-foot>
                        <p>

                            <bold>Remark:</bold> WHOQOL &#x2013; BREF &#x2013; THAI demonstrated the level of quality of life as follows.</p>
                        <p>High refers to 96-130.</p>
                        <p>Middle refers to 61 &#x2013; 95.</p>
                        <p>Low refers to 26 &#x2013; 60.</p>
                    </table-wrap-foot>
                </table-wrap>
                <p>The findings suggested that certain demographic variables were associated with specific aspects of quality of life among senior table tennis players in Thailand.</p>
            </sec>
        </sec>
        <sec id="sec14" sec-type="discussion">
            <title>Discussion</title>
            <p>The findings of this study align with researches conducted in the past which were as follows;</p>
            <sec id="sec15">
                <title>Assessment of the senior Table tennis players&#x2019; quality of life in Thailand which was as follows</title>
                <p>The study found that the most of them were self-employed. It is in line of Groessl et al. Results found that the average cost/participant was $1134 and $175 for the physical activity (PA) (
                    <xref ref-type="bibr" rid="ref8">Groessl et al., 2009</xref>).</p>
                <p>Our analysis using the WHOQOL-BREF Thai version revealed the environmental health dimension had the highest average score (29.32) among the four quality of life dimensions. This aligns with 
                    <xref ref-type="bibr" rid="ref10">Jolanki (2021)</xref> on senior housing fulfilling its promise of providing accessible physical and social environments. These environments encourage residents to be independent, physically active, and participate in social activities, ultimately promoting well-being and healthy aging. Similarly, 
                    <xref ref-type="bibr" rid="ref19">Stenner et al. (2019)</xref> highlighted the continued importance of physical activity for some older adults, potentially contributing to improved health and well-being. It&#x2019;s important to acknowledge risk factors as well. 
                    <xref ref-type="bibr" rid="ref16">Seangpraw et al. (2020)</xref> identified factors like alcohol consumption and illness as significant stressors for the rural Thai elderly population.</p>
            </sec>
            <sec id="sec16">
                <title>The association of the quality-of-life domains and its players characteristics which was as follows</title>
                <p>Our analysis revealed a statistically significant correlation (p &lt; 0.01) between the social relationship and environmental health dimensions. The Pearson correlation coefficient (r) of 0.708 displayed a strong positive correlation, suggesting that these dimensions directly vary together. This finding aligns with research by 
                    <xref ref-type="bibr" rid="ref9">Jia et al. (2023)</xref> who identified a significant correlation between living arrangements, preferred living arrangements, and depression in older adults. Similarly, 
                    <xref ref-type="bibr" rid="ref14">Pei et al. (2022)</xref> demonstrated that living arrangements play a crucial role in indirectly predicting depression through social support. Furthermore, 
                    <xref ref-type="bibr" rid="ref3">Chen (2019)</xref> found that preferred living arrangements reflect needs, cultural norms, and current experiences. Their results support the hypothesis that concordance between preferred and actual living arrangements improves subjective well-being (SWB) in older parents, including reducing depressive symptoms and enhancing happiness.</p>
                <p>The study examined the individual factors and found that the respondents working in the business owner/other tended to have higher quality of life scores in the psychological health aligns with research by 
                    <xref ref-type="bibr" rid="ref5">Dirzyte and Patapas (2022)</xref> who found that employees in private sector reported greater support, dignity, forgiveness, care, and positive practices, along with higher optimism scores, compared to public sector employees.</p>
                <p>Our finding found that the quality of life in overall was associated with career&#x2019;s variable. This finding aligns with research by 
                    <xref ref-type="bibr" rid="ref31">Riva et al. (2022)</xref> studied how the job quality was able to impact a person&#x2019;s overall well-being. This research used a measure called CASP-12 as the research intervention. The findings showed that people with better jobs tended to have higher well-being scores. Similarly, 
                    <xref ref-type="bibr" rid="ref30">Green et al. (2024)</xref> had a similar finding which suggested that the job quality was the important for well-being as physical health.</p>
                <p>The results of the study on the quality of life of senior table tennis players in Thailand are quite significant. The findings revealed that there is a strong correlation between playing table tennis at the tournament level and improvements in the quality of life across all domains. This suggests that participating in table tennis has a positive impact on the physical health, psychological health, social relationships, and environmental health of senior players. These results are in line with previous research that has demonstrated the positive effects of sports participation, particularly in terms of physical and psychological well-being. The study also highlights the unique advantages of table tennis as a sport for individuals of all ages, especially seniors. Table tennis not only offers physical benefits but also provides a social and accessible platform for individuals to engage in physical activity. The findings from this study contribute to the growing body of evidence supporting the positive relationship between sports participation and quality of life. It also emphasizes the importance of promoting sports like table tennis to enhance the well-being of senior individuals. Further research in this area could explore the specific mechanisms through which table tennis contributes to the overall quality of life of senior players, as well as the potential implications for developing targeted interventions to promote healthy aging through sports participation. The reason for selecting this sub-population was this tournament is one of the biggest table tennis tournaments in Thailand where participants came from all around the world. The absence of a control group in the study limits the ability to draw definitive conclusions about the causal relationship between playing table tennis and improvements in quality of life, as suggested in the authors&#x2019; conclusion. While the significant correlations found between playing table tennis at the tournament level and the quality of life in all domains are noteworthy, future research should consider incorporating control groups and longitudinal designs to establish a more robust understanding of the potential impact of table tennis participation on the quality of life of senior players. Additionally, qualitative research methods could be employed to gain a deeper understanding of the experiences and perspectives of senior table tennis players, providing a more comprehensive view of the potential effects of the sport on their quality of life. This study was a cross-sectional survey of quality of life of this sub-population. This objective of this study was not to compare the quality of life between the participants and general population. However, the result showed the comparison between domains of QoL and individual factors. Therefore, the methodology was not designed for having the control group.</p>
                <p>In future research, it would be valuable to incorporate a comparative analysis of the quality-of-life measures for senior table tennis players with those of the general Thai senior population to provide important context for understanding the specific impact of table tennis participation on the well-being of senior players. While this comparison was not conducted in the present study, it represents a promising avenue for further investigation, offering insights into the potential benefits associated with engaging in table tennis at the tournament level and contributing to a more comprehensive understanding of the quality of life of senior individuals in Thailand.</p>
            </sec>
        </sec>
        <sec id="sec17" sec-type="conclusions">
            <title>Conclusions</title>
            <p>Playing Table tennis for senior in the tournament level helped to improve the quality of life in all domains. The results can be applied for those stakeholders that relevant to the Table tennis organizations whether the public or private section which were responsible for supporting the senior in the community to exercise and to compete in the Table tennis tournament. The further study would be able to apply with the different participants such as youth players which the research finding would be the benefit for improving their quality of life.</p>
        </sec>
    </body>
    <back>
        <sec id="sec21" sec-type="data-availability">
            <title>Data availability</title>
            <p>Figshare- Underlying Data - Table Tennis EN.xlsx, 
                <ext-link ext-link-type="uri" xlink:href="https://doi.org/10.6084/m9.figshare.25780110.v2">https://doi.org/10.6084/m9.figshare.25780110.v2</ext-link> (
                <xref ref-type="bibr" rid="ref27">To-aj et al., 2024</xref>).</p>
            <p>This project contains following dataset:
                <list list-type="bullet">
                    <list-item>
                        <label>&#x2022;</label>
                        <p>Underlying Data_Table Tennis.xlsx</p>
                    </list-item>
                    <list-item>
                        <label>&#x2022;</label>
                        <p>Blank copy of questionnaire.docx</p>
                    </list-item>
                </list>
            </p>
            <p>Data are available under the terms of the 
                <ext-link ext-link-type="uri" xlink:href="https://creativecommons.org/licenses/by/4.0/">Creative Commons Attribution 4.0 International license</ext-link> (CC-BY 4.0).</p>
        </sec>
        <ack>
            <title>Acknowledgement</title>
            <p>The authors would like to express their gratitude to QUVAE Research and Publications for their valuable assistance with the deposition of the raw data to the Figshare repository.</p>
        </ack>
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    <sub-article article-type="reviewer-report" id="report340590">
        <front-stub>
            <article-id pub-id-type="doi">10.5256/f1000research.174652.r340590</article-id>
            <title-group>
                <article-title>Reviewer response for version 3</article-title>
            </title-group>
            <contrib-group>
                <contrib contrib-type="author">
                    <name>
                        <surname>Lo</surname>
                        <given-names>Johnny</given-names>
                    </name>
                    <xref ref-type="aff" rid="r340590a1">1</xref>
                    <role>Referee</role>
                    <uri content-type="orcid">https://orcid.org/0000-0003-1913-5354</uri>
                </contrib>
                <aff id="r340590a1">
                    <label>1</label>Edith Cowan University, Joondalup, Western Australia, Australia</aff>
            </contrib-group>
            <author-notes>
                <fn fn-type="conflict">
                    <p>
                        <bold>Competing interests: </bold>No competing interests were disclosed.</p>
                </fn>
            </author-notes>
            <pub-date pub-type="epub">
                <day>15</day>
                <month>11</month>
                <year>2024</year>
            </pub-date>
            <permissions>
                <copyright-statement>Copyright: &#x00a9; 2024 Lo J</copyright-statement>
                <copyright-year>2024</copyright-year>
                <license xlink:href="https://creativecommons.org/licenses/by/4.0/">
                    <license-p>This is an open access peer review report distributed under the terms of the Creative Commons Attribution Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.</license-p>
                </license>
            </permissions>
            <related-article ext-link-type="doi" id="relatedArticleReport340590" related-article-type="peer-reviewed-article" xlink:href="10.12688/f1000research.153625.3"/>
            <custom-meta-group>
                <custom-meta>
                    <meta-name>recommendation</meta-name>
                    <meta-value>reject</meta-value>
                </custom-meta>
            </custom-meta-group>
        </front-stub>
        <body>
            <p>Unfortunately, I still do not believe this paper contributes to new knowledge sufficiently enough. The authors stated that, "The previous reports indicated the positive impacts to quality of life from playing table tennis. However, they had never been assessed in Thailand." If this is the only contribution, then it's not enough.</p>
            <p> </p>
            <p> Also, as stated in my 1st review, the analysis is not robust enough with only correlation analysis. I would expect at the very least a multivariable model. Also, the whole paper is based primary on a single outcome in WHOQOL-BREF, and this is not substantive enough. Other aspects of health will need to be considered as well to strengthen the paper.</p>
            <p> </p>
            <p> By the way, the categorisation of WHOQOL-BREF is not sufficiently justified.&#x00a0;The justification for the categorization of the WHOQOL-BREF is not fully explained. Providing a more detailed rationale for this approach would enhance the clarity and validity of the paper.</p>
            <p> </p>
            <p> There are some grammatical issues in the abstract, especially in the description of the methods section. A review of the language for clarity and precision would improve the overall readability of the manuscript.</p>
            <p>Is the work clearly and accurately presented and does it cite the current literature?</p>
            <p>Partly</p>
            <p>If applicable, is the statistical analysis and its interpretation appropriate?</p>
            <p>No</p>
            <p>Are all the source data underlying the results available to ensure full reproducibility?</p>
            <p>Yes</p>
            <p>Is the study design appropriate and is the work technically sound?</p>
            <p>Yes</p>
            <p>Are the conclusions drawn adequately supported by the results?</p>
            <p>No</p>
            <p>Are sufficient details of methods and analysis provided to allow replication by others?</p>
            <p>No</p>
            <p>Reviewer Expertise:</p>
            <p>Applied statistics</p>
            <p>I confirm that I have read this submission and believe that I have an appropriate level of expertise to state that I do not consider it to be of an acceptable scientific standard, for reasons outlined above.</p>
        </body>
    </sub-article>
    <sub-article article-type="reviewer-report" id="report332961">
        <front-stub>
            <article-id pub-id-type="doi">10.5256/f1000research.173387.r332961</article-id>
            <title-group>
                <article-title>Reviewer response for version 2</article-title>
            </title-group>
            <contrib-group>
                <contrib contrib-type="author">
                    <name>
                        <surname>He</surname>
                        <given-names>Yuqi</given-names>
                    </name>
                    <xref ref-type="aff" rid="r332961a1">1</xref>
                    <role>Referee</role>
                    <uri content-type="orcid">https://orcid.org/0000-0001-7357-9832</uri>
                </contrib>
                <aff id="r332961a1">
                    <label>1</label>University of Pannonia, Veszpr&#x00e9;m, Hungary</aff>
            </contrib-group>
            <author-notes>
                <fn fn-type="conflict">
                    <p>
                        <bold>Competing interests: </bold>No competing interests were disclosed.</p>
                </fn>
            </author-notes>
            <pub-date pub-type="epub">
                <day>13</day>
                <month>11</month>
                <year>2024</year>
            </pub-date>
            <permissions>
                <copyright-statement>Copyright: &#x00a9; 2024 He Y</copyright-statement>
                <copyright-year>2024</copyright-year>
                <license xlink:href="https://creativecommons.org/licenses/by/4.0/">
                    <license-p>This is an open access peer review report distributed under the terms of the Creative Commons Attribution Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.</license-p>
                </license>
            </permissions>
            <related-article ext-link-type="doi" id="relatedArticleReport332961" related-article-type="peer-reviewed-article" xlink:href="10.12688/f1000research.153625.2"/>
            <custom-meta-group>
                <custom-meta>
                    <meta-name>recommendation</meta-name>
                    <meta-value>approve-with-reservations</meta-value>
                </custom-meta>
            </custom-meta-group>
        </front-stub>
        <body>
            <p>Thanks a lot for addressing the comments and revisions. There are still few issues that should be revised to make improvement of the manuscript which are listed as follows:</p>
            <p> </p>
            <p> 1. For the Analysis section, please add more details for readers to understand this study better, rather than a short sentence.</p>
            <p> </p>
            <p> 2. Please further add reference for this sentence "Table tennis emerged as a unique and accessible sport for people of all ages, particularly seniors. Compared to other sports, it offered a lower risk of injury, making it suitable for individuals with joint limitations", and the following articles are encouraged to be cited and referenced "Lower Limb Muscle Forces in Table Tennis Footwork during Topspin Forehand Stroke Based on the OpenSim Musculoskeletal Model: A Pilot Study"[Ref 1].</p>
            <p>Is the work clearly and accurately presented and does it cite the current literature?</p>
            <p>Partly</p>
            <p>If applicable, is the statistical analysis and its interpretation appropriate?</p>
            <p>Yes</p>
            <p>Are all the source data underlying the results available to ensure full reproducibility?</p>
            <p>Yes</p>
            <p>Is the study design appropriate and is the work technically sound?</p>
            <p>Yes</p>
            <p>Are the conclusions drawn adequately supported by the results?</p>
            <p>Partly</p>
            <p>Are sufficient details of methods and analysis provided to allow replication by others?</p>
            <p>Yes</p>
            <p>Reviewer Expertise:</p>
            <p>Sports Medicine, Sports Biomechanics,&#x00a0;Musculoskeletal Simulation</p>
            <p>I confirm that I have read this submission and believe that I have an appropriate level of expertise to confirm that it is of an acceptable scientific standard, however I have significant reservations, as outlined above.</p>
        </body>
        <back>
            <ref-list>
                <title>References</title>
                <ref id="rep-ref-332961-1">
                    <label>1</label>
                    <mixed-citation publication-type="journal">
                        <person-group person-group-type="author"/>:
                        <article-title>Lower Limb Muscle Forces in Table Tennis Footwork during Topspin Forehand Stroke Based on the OpenSim Musculoskeletal Model: A Pilot Study</article-title>.
                        <source>
                            <italic>Molecular &amp; Cellular Biomechanics</italic>
                        </source>.<year>2022</year>;<volume>19</volume>(<issue>4</issue>) :
                        <elocation-id>10.32604/mcb.2022.027285</elocation-id>
                        <fpage>221</fpage>-<lpage>235</lpage>
                        <pub-id pub-id-type="doi">10.32604/mcb.2022.027285</pub-id>
                    </mixed-citation>
                </ref>
            </ref-list>
        </back>
        <sub-article article-type="response" id="comment13391-332961">
            <front-stub>
                <contrib-group>
                    <contrib contrib-type="author">
                        <name>
                            <surname>Krajangkantamatr</surname>
                            <given-names>Sornpravate</given-names>
                        </name>
                        <aff>Mahidol University, Salaya, Nakhon Pathom, Thailand</aff>
                    </contrib>
                </contrib-group>
                <author-notes>
                    <fn fn-type="conflict">
                        <p>
                            <bold>Competing interests: </bold>No competing interests.</p>
                    </fn>
                </author-notes>
                <pub-date pub-type="epub">
                    <day>20</day>
                    <month>2</month>
                    <year>2025</year>
                </pub-date>
            </front-stub>
            <body>
                <p>We have extended some statement to give more details for readers. Furthermore, we added the highlighted statement below in the introduction part of manuscript using the reference "Lower Limb Muscle Forces in Table Tennis Footwork during Topspin Forehand Stroke Based on the OpenSim Musculoskeletal Model: A Pilot Study".</p>
                <p> </p>
                <p> Best,</p>
                <p> </p>
                <p> Author</p>
            </body>
        </sub-article>
    </sub-article>
    <sub-article article-type="reviewer-report" id="report332962">
        <front-stub>
            <article-id pub-id-type="doi">10.5256/f1000research.173387.r332962</article-id>
            <title-group>
                <article-title>Reviewer response for version 2</article-title>
            </title-group>
            <contrib-group>
                <contrib contrib-type="author">
                    <name>
                        <surname>Lo</surname>
                        <given-names>Johnny</given-names>
                    </name>
                    <xref ref-type="aff" rid="r332962a1">1</xref>
                    <role>Referee</role>
                    <uri content-type="orcid">https://orcid.org/0000-0003-1913-5354</uri>
                </contrib>
                <aff id="r332962a1">
                    <label>1</label>Edith Cowan University, Joondalup, Western Australia, Australia</aff>
            </contrib-group>
            <author-notes>
                <fn fn-type="conflict">
                    <p>
                        <bold>Competing interests: </bold>No competing interests were disclosed.</p>
                </fn>
            </author-notes>
            <pub-date pub-type="epub">
                <day>25</day>
                <month>10</month>
                <year>2024</year>
            </pub-date>
            <permissions>
                <copyright-statement>Copyright: &#x00a9; 2024 Lo J</copyright-statement>
                <copyright-year>2024</copyright-year>
                <license xlink:href="https://creativecommons.org/licenses/by/4.0/">
                    <license-p>This is an open access peer review report distributed under the terms of the Creative Commons Attribution Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.</license-p>
                </license>
            </permissions>
            <related-article ext-link-type="doi" id="relatedArticleReport332962" related-article-type="peer-reviewed-article" xlink:href="10.12688/f1000research.153625.2"/>
            <custom-meta-group>
                <custom-meta>
                    <meta-name>recommendation</meta-name>
                    <meta-value>reject</meta-value>
                </custom-meta>
            </custom-meta-group>
        </front-stub>
        <body>
            <p>The statistical analysis section is still lacking in details. The were instances where the certain categories were pooled but was not mentioned in the methods section. Also, the authors have categorised the QoL into Low, Medium and High and there is no mention of how and why this was done. Without this information, it was difficult to understand why a Chi-square test was performed.</p>
            <p> </p>
            <p> Overall, I believe the analyses are too segmented and that a more robust statistical approach should be use, for example, general linear modelling.</p>
            <p>Is the work clearly and accurately presented and does it cite the current literature?</p>
            <p>Partly</p>
            <p>If applicable, is the statistical analysis and its interpretation appropriate?</p>
            <p>No</p>
            <p>Are all the source data underlying the results available to ensure full reproducibility?</p>
            <p>Yes</p>
            <p>Is the study design appropriate and is the work technically sound?</p>
            <p>Yes</p>
            <p>Are the conclusions drawn adequately supported by the results?</p>
            <p>No</p>
            <p>Are sufficient details of methods and analysis provided to allow replication by others?</p>
            <p>No</p>
            <p>Reviewer Expertise:</p>
            <p>Applied statistics</p>
            <p>I confirm that I have read this submission and believe that I have an appropriate level of expertise to state that I do not consider it to be of an acceptable scientific standard, for reasons outlined above.</p>
        </body>
        <sub-article article-type="response" id="comment12800-332962">
            <front-stub>
                <contrib-group>
                    <contrib contrib-type="author">
                        <name>
                            <surname>Krajangkantamatr</surname>
                            <given-names>Sornpravate</given-names>
                        </name>
                        <aff>Mahidol University, Salaya, Nakhon Pathom, Thailand</aff>
                    </contrib>
                </contrib-group>
                <author-notes>
                    <fn fn-type="conflict">
                        <p>
                            <bold>Competing interests: </bold>No competing interests.</p>
                    </fn>
                </author-notes>
                <pub-date pub-type="epub">
                    <day>10</day>
                    <month>11</month>
                    <year>2024</year>
                </pub-date>
            </front-stub>
            <body>
                <p>Comment: The statistical analysis section is still lacking in details. The were instances where the certain categories were pooled but was not mentioned in the methods section. Also, the authors have categorized the QoL into Low, Medium and High and there is no mention of how and why this was done. Without this information, it was difficult to understand why a Chi-square test was performed.</p>
                <p> Overall, I believe the analyses are too segmented and that a more robust statistical approach should be use, for example, general linear modelling.</p>
                <p> </p>
                <p> Answer:&#x00a0;Thank you for your valuable recommendation.&#x00a0; We have already added the details in the methods part of our manuscript including answering the reason why we have categorized the QoL into Low, Middle and High. This is commonly used of the standard scoring criteria of WHOQOL-BREF. In this article, we aim to make it more simplified interpretation, comparative analysis across the groups, standardized to compare across other studies, and further tailored supported-intervention. Therefore, the categorized-findings in this article is benefit for facilitating toward better decision making and policy framework.</p>
            </body>
        </sub-article>
    </sub-article>
    <sub-article article-type="reviewer-report" id="report325064">
        <front-stub>
            <article-id pub-id-type="doi">10.5256/f1000research.168544.r325064</article-id>
            <title-group>
                <article-title>Reviewer response for version 1</article-title>
            </title-group>
            <contrib-group>
                <contrib contrib-type="author">
                    <name>
                        <surname>He</surname>
                        <given-names>Yuqi</given-names>
                    </name>
                    <xref ref-type="aff" rid="r325064a1">1</xref>
                    <role>Referee</role>
                    <uri content-type="orcid">https://orcid.org/0000-0001-7357-9832</uri>
                </contrib>
                <aff id="r325064a1">
                    <label>1</label>University of Pannonia, Veszpr&#x00e9;m, Hungary</aff>
            </contrib-group>
            <author-notes>
                <fn fn-type="conflict">
                    <p>
                        <bold>Competing interests: </bold>No competing interests were disclosed.</p>
                </fn>
            </author-notes>
            <pub-date pub-type="epub">
                <day>1</day>
                <month>10</month>
                <year>2024</year>
            </pub-date>
            <permissions>
                <copyright-statement>Copyright: &#x00a9; 2024 He Y</copyright-statement>
                <copyright-year>2024</copyright-year>
                <license xlink:href="https://creativecommons.org/licenses/by/4.0/">
                    <license-p>This is an open access peer review report distributed under the terms of the Creative Commons Attribution Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.</license-p>
                </license>
            </permissions>
            <related-article ext-link-type="doi" id="relatedArticleReport325064" related-article-type="peer-reviewed-article" xlink:href="10.12688/f1000research.153625.1"/>
            <custom-meta-group>
                <custom-meta>
                    <meta-name>recommendation</meta-name>
                    <meta-value>approve-with-reservations</meta-value>
                </custom-meta>
            </custom-meta-group>
        </front-stub>
        <body>
            <p>This manuscript entitled &#x201c;Axial rotation affects the cognitive characteristics of spatial ability&#x201d; is encouraging research, but there are several questions which lists below. You can revise this paper more properly.</p>
            <p> 1.&#x00a0;The meaning and application of this research should be further and clearly expressed in the introduction section. It will help readers to understand the function and value of this study. Please further explain why have to do this research and the possible benefit of this research to this field.</p>
            <p> 2.&#x00a0;Physical activity is beneficial to quality of life, physical health and mental health, explain how it can be shown that it was due to the sport of table tennis that led to this result? Therefore I suggest adding some specific data or experimental design to demonstrate the specific effect of table tennis exercise on quality of life enhancement.</p>
            <p>Is the work clearly and accurately presented and does it cite the current literature?</p>
            <p>Partly</p>
            <p>If applicable, is the statistical analysis and its interpretation appropriate?</p>
            <p>Yes</p>
            <p>Are all the source data underlying the results available to ensure full reproducibility?</p>
            <p>Yes</p>
            <p>Is the study design appropriate and is the work technically sound?</p>
            <p>Yes</p>
            <p>Are the conclusions drawn adequately supported by the results?</p>
            <p>Partly</p>
            <p>Are sufficient details of methods and analysis provided to allow replication by others?</p>
            <p>Yes</p>
            <p>Reviewer Expertise:</p>
            <p>Sports Medicine, Sports Biomechanics,&#x00a0;Musculoskeletal Simulation</p>
            <p>I confirm that I have read this submission and believe that I have an appropriate level of expertise to confirm that it is of an acceptable scientific standard, however I have significant reservations, as outlined above.</p>
        </body>
        <sub-article article-type="response" id="comment12801-325064">
            <front-stub>
                <contrib-group>
                    <contrib contrib-type="author">
                        <name>
                            <surname>Krajangkantamatr</surname>
                            <given-names>Sornpravate</given-names>
                        </name>
                        <aff>Mahidol University, Salaya, Nakhon Pathom, Thailand</aff>
                    </contrib>
                </contrib-group>
                <author-notes>
                    <fn fn-type="conflict">
                        <p>
                            <bold>Competing interests: </bold>No competing interests.</p>
                    </fn>
                </author-notes>
                <pub-date pub-type="epub">
                    <day>10</day>
                    <month>11</month>
                    <year>2024</year>
                </pub-date>
            </front-stub>
            <body>
                <p>This manuscript entitled "The quality of life in Thai senior table tennis players"&#x00a0;is encouraging research, but there are several questions which lists below. You can revise this paper more properly.</p>
                <p> </p>
                <p> 
                    <bold>Comment 1 </bold>The meaning and application of this research should be further and clearly expressed in the introduction section. It will help readers to understand the function and value of this study. Please further explain why have to do this research and the possible benefit of this research to this field.</p>
                <p> </p>
                <p> 
                    <bold>Answer 1</bold>&#x00a0;The last paragraph of the introduction part was revised to this one;</p>
                <p> The previous reports indicated the positive impacts to quality of life from playing table tennis. However, they had never been assessed in Thailand. Therefore, this study investigates the quality of life of senior table tennis players in Thailand, particularly focusing on the association between quality-of-life aspects and players characteristics. This analysis will provide deeper information on the effect of competing table tennis and quality of life of senior players in Thailand.</p>
                <p> </p>
                <p> 
                    <bold>Comment 2</bold> Physical activity is beneficial to quality of life, physical health and mental health, explain how it can be shown that it was due to the sport of table tennis that led to this result? Therefore, I suggest adding some specific data or experimental design to demonstrate the specific effect of table tennis exercise on quality-of-life enhancement.</p>
                <p> </p>
                <p> 
                    <bold>Answer 2&#x00a0;</bold>These sentences have been added to manuscript;</p>
                <p> Ishiguro &amp; Amano (2022) showed that playing table tennis offered several health benefits, including better muscle strength, physical performance, body composition, and lipid profiles in recreational table tennis players relative to their age-matched counterparts. Zhang and Min (2022) indicated that the mental health of girls has been changed positively after joining the table tennis exercise.</p>
                <p> I&#x2019;ve also added these articles on the reference list as follows;</p>
                <p> References</p>
                <p> 12</p>
                <p> Ishiguro A., Amano T.: Comparisons of cardiorespiratory and thermoregulatory responses to table tennis and cycling at similar perceived levels of effort. Science and Sports. 2022;37(2):143:e141-143.e149. https://doi.org/10.1016/j.scispo.2021.03.005</p>
                <p> </p>
                <p> 29</p>
                <p> Zhang Z, Min HJ: Effects of Different Physical Exercises on Physical and Mental Health of Female College Students. Journal of Healthcare Engineering. 2022; 7812005. https://doi.org/10.1155/2022/7812005</p>
                <p> </p>
                <p> Best,</p>
            </body>
        </sub-article>
    </sub-article>
    <sub-article article-type="reviewer-report" id="report325061">
        <front-stub>
            <article-id pub-id-type="doi">10.5256/f1000research.168544.r325061</article-id>
            <title-group>
                <article-title>Reviewer response for version 1</article-title>
            </title-group>
            <contrib-group>
                <contrib contrib-type="author">
                    <name>
                        <surname>Lo</surname>
                        <given-names>Johnny</given-names>
                    </name>
                    <xref ref-type="aff" rid="r325061a1">1</xref>
                    <role>Referee</role>
                    <uri content-type="orcid">https://orcid.org/0000-0003-1913-5354</uri>
                </contrib>
                <aff id="r325061a1">
                    <label>1</label>Edith Cowan University, Joondalup, Western Australia, Australia</aff>
            </contrib-group>
            <author-notes>
                <fn fn-type="conflict">
                    <p>
                        <bold>Competing interests: </bold>No competing interests were disclosed.</p>
                </fn>
            </author-notes>
            <pub-date pub-type="epub">
                <day>20</day>
                <month>9</month>
                <year>2024</year>
            </pub-date>
            <permissions>
                <copyright-statement>Copyright: &#x00a9; 2024 Lo J</copyright-statement>
                <copyright-year>2024</copyright-year>
                <license xlink:href="https://creativecommons.org/licenses/by/4.0/">
                    <license-p>This is an open access peer review report distributed under the terms of the Creative Commons Attribution Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.</license-p>
                </license>
            </permissions>
            <related-article ext-link-type="doi" id="relatedArticleReport325061" related-article-type="peer-reviewed-article" xlink:href="10.12688/f1000research.153625.1"/>
            <custom-meta-group>
                <custom-meta>
                    <meta-name>recommendation</meta-name>
                    <meta-value>reject</meta-value>
                </custom-meta>
            </custom-meta-group>
        </front-stub>
        <body>
            <p>1. The literature review was good, however, it's not clear how this study contributes to new knowledge as the knowledge gaps are no clearly stated.</p>
            <p> 2. More information is required regarding the WHOQOL-BREF tool, i.e. how each item and domain is scored, and how the overall score is calculated. Furthermore, I believe the overall score should be rescaled to range between 0 and 100.</p>
            <p> 3. Statistical analysis to assess the association between the&#x00a0;WHOQOL-BREF and demographic variables is missing. If Pearson correlation was used, then this would be incorrect.</p>
            <p> 4.&#x00a0;At the very least, the result of the QoL measures for the senior table tennis players should be compared to the general Thai senior population for context.&#x00a0;</p>
            <p> 5. There are too many repeat statements in the paper. I) The statement "Pearson correlation coefficients were calculated between the scores of the quality of life in the four dimensions and the overall score" was present in the Methods (should be removed from here) and the Section 2 of the results; II) Paragraphs 2 and 3 in the first section of the Discussions are virtually the same. III) Ethics and consent are provided in the Methods and the end of the paper.</p>
            <p> 6. The last paragraph of the Results section needs to be more precise. For example, it is stated that 'Females had a higher mean (0.069) than males', but what's actually higher? Also, where does the value 0.069 come from?</p>
            <p> 7. The discussion has no direct mentions of table tennis, so it's unclear how table tennis is relevant here and why this sub-population is selected.</p>
            <p> 8. There is no control group, and hence one cannot conclude that playing table tennis help to improve QoL, as suggested in the authors' conclusion.</p>
            <p> 9. Lastly I don't believe the content of the paper is substantive enough.</p>
            <p>Is the work clearly and accurately presented and does it cite the current literature?</p>
            <p>Partly</p>
            <p>If applicable, is the statistical analysis and its interpretation appropriate?</p>
            <p>No</p>
            <p>Are all the source data underlying the results available to ensure full reproducibility?</p>
            <p>Yes</p>
            <p>Is the study design appropriate and is the work technically sound?</p>
            <p>Yes</p>
            <p>Are the conclusions drawn adequately supported by the results?</p>
            <p>No</p>
            <p>Are sufficient details of methods and analysis provided to allow replication by others?</p>
            <p>No</p>
            <p>Reviewer Expertise:</p>
            <p>Applied statistics</p>
            <p>I confirm that I have read this submission and believe that I have an appropriate level of expertise to state that I do not consider it to be of an acceptable scientific standard, for reasons outlined above.</p>
        </body>
        <sub-article article-type="response" id="comment12614-325061">
            <front-stub>
                <contrib-group>
                    <contrib contrib-type="author">
                        <name>
                            <surname>Krajangkantamatr</surname>
                            <given-names>Sornpravate</given-names>
                        </name>
                        <aff>Mahidol University, Salaya, Nakhon Pathom, Thailand</aff>
                    </contrib>
                </contrib-group>
                <author-notes>
                    <fn fn-type="conflict">
                        <p>
                            <bold>Competing interests: </bold>No competing interests were disclosed.</p>
                    </fn>
                </author-notes>
                <pub-date pub-type="epub">
                    <day>11</day>
                    <month>10</month>
                    <year>2024</year>
                </pub-date>
            </front-stub>
            <body>
                <p>We have made the following improvements to the manuscript:</p>
                <p> &#x00a0; 
                    <list list-type="order">
                        <list-item>
                            <p>We have clarified how our study contributes to new knowledge by addressing specific gaps in existing research on the quality of life of senior table tennis players in Thailand.</p>
                        </list-item>
                        <list-item>
                            <p>Additional information on the scoring of the WHOQOL-BREF tool has been provided, explaining how each item and domain is scored.</p>
                        </list-item>
                        <list-item>
                            <p>The statistical analysis using Pearson correlation to assess the association between the WHOQOL-BREF, and demographic variables has been elaborated upon.</p>
                        </list-item>
                        <list-item>
                            <p>Table 5 showing the association between the WHOQOL-BREF, and demographic variables has been added, demonstrating the relationship between characteristics and quality of life.</p>
                        </list-item>
                        <list-item>
                            <p>The Results section has been revised for enhanced precision in communicating the study findings.</p>
                        </list-item>
                        <list-item>
                            <p>Repetitive statements have been removed from the paper.</p>
                        </list-item>
                        <list-item>
                            <p>We have acknowledged the suggestion for future research to include a comparative analysis of quality-of-life measures for senior table tennis players with the general Thai senior population</p>
                        </list-item>
                    </list>
                </p>
            </body>
        </sub-article>
    </sub-article>
</article>
