{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T03:13:40Z","timestamp":1760238820873,"version":"build-2065373602"},"reference-count":34,"publisher":"MDPI AG","issue":"17","license":[{"start":{"date-parts":[[2020,8,26]],"date-time":"2020-08-26T00:00:00Z","timestamp":1598400000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Extremadura Public Employment Service (SEXPE)","award":["#TE311 0009-18"],"award-info":[{"award-number":["#TE311 0009-18"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Applied Sciences"],"abstract":"<jats:p>Background: Childhood obesity is one of the most critical global health challenges. Poor knee extensor strength is associated with disability and difficulties with physical function in obese patients. The objective of this study was to evaluate the test-retest reliability of peak torque and total work in concentric flexion and concentric extension in obese children. Methods: 25 obese children aged between 6 and 11 years performed 3F maximal unilateral isokinetic repetitions with the knee extensors\/flexors performing concentric actions at 60\u00b0\/s. Peak torque (Nm), total work (J), and the ratio antagonist\/agonist were recorded and normalized by total and lean mass. The intraclass correlation coefficient (ICC), standard error of measurement (SEM), and smallest real difference (SRD) were computed. Results: Reliability was excellent for almost all variables. The highest ICC values were observed when work or peak torque were not divided by any other variable. However, SEM (%) and SRD (%) were lower when peak torque and work were divided by the total mass or lean mass. The antagonist\/agonist ratio showed an ICC value of 0.873. Conclusion: Peak torque, total work, and the antagonist\/agonist ratio are reliable in obese children.<\/jats:p>","DOI":"10.3390\/app10175923","type":"journal-article","created":{"date-parts":[[2020,8,27]],"date-time":"2020-08-27T08:05:18Z","timestamp":1598515518000},"page":"5923","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Test-Retest Intra-Session Reliability of Isokinetic Knee Strength Measurements in Obese Children"],"prefix":"10.3390","volume":"10","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5140-465X","authenticated-orcid":false,"given":"Daniel","family":"Collado-Mateo","sequence":"first","affiliation":[{"name":"Centre for Sport Studies, Rey Juan Carlos University, 28943 Madrid, Spain"},{"name":"Faculty of Sport Sciences, University of Extremadura, 10003 C\u00e1ceres, Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5388-2009","authenticated-orcid":false,"given":"Francisco Javier","family":"Dom\u00ednguez-Mu\u00f1oz","sequence":"additional","affiliation":[{"name":"Faculty of Sport Sciences, University of Extremadura, 10003 C\u00e1ceres, Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7203-3168","authenticated-orcid":false,"given":"Jose C.","family":"Adsuar","sequence":"additional","affiliation":[{"name":"Faculty of Sport Sciences, University of Extremadura, 10003 C\u00e1ceres, Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5254-7409","authenticated-orcid":false,"given":"Jose A.","family":"Parraca","sequence":"additional","affiliation":[{"name":"Departamento de Desporto e Sa\u00fade, Escola de Ci\u00eancia e Tecnologia, Universidade de \u00c9vora, 7000 \u00c9vora, Portugal"},{"name":"Comprehensive Health Research Center (CHRC), University of \u00c9vora, 7000 \u00c9vora, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7780-3942","authenticated-orcid":false,"given":"Pablo","family":"Tomas-Carus","sequence":"additional","affiliation":[{"name":"Departamento de Desporto e Sa\u00fade, Escola de Ci\u00eancia e Tecnologia, Universidade de \u00c9vora, 7000 \u00c9vora, Portugal"},{"name":"Comprehensive Health Research Center (CHRC), University of \u00c9vora, 7000 \u00c9vora, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1736-0996","authenticated-orcid":false,"given":"Miguel \u00c1ngel","family":"Garcia-Gordillo","sequence":"additional","affiliation":[{"name":"Facultad de Administraci\u00f3n y Negocios, Universidad Aut\u00f3noma de Chile, Talca 3467987, Chile"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9753-8381","authenticated-orcid":false,"given":"Armando M.","family":"Raimundo","sequence":"additional","affiliation":[{"name":"Departamento de Desporto e Sa\u00fade, Escola de Ci\u00eancia e Tecnologia, Universidade de \u00c9vora, 7000 \u00c9vora, Portugal"},{"name":"Comprehensive Health Research Center (CHRC), University of \u00c9vora, 7000 \u00c9vora, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2020,8,26]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"341","DOI":"10.1111\/j.1440-1754.2006.00869.x","article-title":"Musculoskeletal findings in obese children","volume":"42","author":"Radu","year":"2006","journal-title":"J. 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