{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,13]],"date-time":"2026-05-13T05:08:40Z","timestamp":1778648920648,"version":"3.51.4"},"reference-count":23,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2026,4,30]],"date-time":"2026-04-30T00:00:00Z","timestamp":1777507200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JFMK"],"abstract":"<jats:p>Objective: The primary aim of this study was to compare eccentric knee flexion isokinetic performance at two commonly used angular velocities (60\u00b0\u00b7s\u22121 and 180\u00b0\u00b7s\u22121) between dominant and non-dominant limbs in healthy professional soccer players through the analysis of peak torque, mean peak torque, angle of peak torque, total work, and rate-of-torque-development-related variables. The secondary aim was to describe concentric knee extension and knee flexion strength variables assessed at 60\u00b0\u00b7s\u22121. Methods: Forty male professional soccer players performed concentric knee flexion\u2013extension testing at 60\u00b0\u00b7s\u22121 and eccentric knee flexion testing at 60\u00b0\u00b7s\u22121 and 180\u00b0\u00b7s\u22121 using an isokinetic dynamometer. Peak torque (PT), mean peak torque (MPT), angle of peak torque (APT), total work (TW), and hamstrings: quadriceps ratios (H:Q ratios) were analyzed for dominant and non-dominant limbs. Inter-limb differences, repetition effects, and reliability indices were calculated. Results: No significant inter-limb differences were observed for most variables (trivial\u2013small effect sizes), except for higher eccentric TW at 180\u00b0\u00b7s\u22121 in the dominant limb (p = 0.009). Eccentric PT and MPT decreased at higher velocities in both dominant (p = 0.002 and p &lt; 0.001, respectively) and non-dominant (p = 0.008 and p &lt; 0.001, respectively) limbs, while APT shifted toward more flexed knee angles (p &lt; 0.001). Reliability was good to excellent (ICC = 0.81\u20130.87), with low measurement error. Conclusion: Eccentric knee flexion assessment at 60\u00b0\u00b7s\u22121 and 180\u00b0\u00b7s\u22121 angular velocities provided different results in PT, MPT, and APT for the same group of players, supporting the use of more than one eccentric test for obtaining information about these variables in elite soccer.<\/jats:p>","DOI":"10.3390\/jfmk11020184","type":"journal-article","created":{"date-parts":[[2026,4,30]],"date-time":"2026-04-30T12:20:25Z","timestamp":1777551625000},"page":"184","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Velocity-Dependent Eccentric Knee-Flexion Isokinetic Assessment in Elite Professional Soccer Players: Reliability, Inter-Limb Asymmetry and Mechanical Characteristics"],"prefix":"10.3390","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4166-3877","authenticated-orcid":false,"given":"Francisco Javier","family":"Nu\u00f1ez","sequence":"first","affiliation":[{"name":"Physical Performance & Sports Research, Universidad Pablo de Olavide, 41013 Seville, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0001-7872-1524","authenticated-orcid":false,"given":"Marco","family":"Carletta","sequence":"additional","affiliation":[{"name":"Performance and Health Department, FC Lugano, 6900 Lugano, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gloria","family":"Picco","sequence":"additional","affiliation":[{"name":"Centro dello Sport\u2014Ars Medica, 6929 Lugano, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Reyes","family":"Adorna","sequence":"additional","affiliation":[{"name":"Ministry of Educational Development and Vocational Training, Junta de Andaluc\u00eda, 41092 Seville, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0008-8597-9276","authenticated-orcid":false,"given":"Juan Luis","family":"Nu\u00f1ez-Gonz\u00e1lez","sequence":"additional","affiliation":[{"name":"Department of Communication and Education, Universidad Loyola Andaluc\u00eda, 41704 Seville, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5432-4786","authenticated-orcid":false,"given":"Luis","family":"Suarez-Arrones","sequence":"additional","affiliation":[{"name":"Physical Performance & Sports Research, Universidad Pablo de Olavide, 41013 Seville, Spain"},{"name":"Performance and Health Department, FC Lugano, 6900 Lugano, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2026,4,30]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"281","DOI":"10.1519\/JSC.0000000000002609","article-title":"Hamstring-to-Quadriceps Torque Ratios of Professional Male Soccer Players: A Systematic Review","volume":"34","author":"Baroni","year":"2020","journal-title":"J. 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Ther."}],"container-title":["Journal of Functional Morphology and Kinesiology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2411-5142\/11\/2\/184\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,5,13]],"date-time":"2026-05-13T04:16:15Z","timestamp":1778645775000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2411-5142\/11\/2\/184"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,4,30]]},"references-count":23,"journal-issue":{"issue":"2","published-online":{"date-parts":[[2026,6]]}},"alternative-id":["jfmk11020184"],"URL":"https:\/\/doi.org\/10.3390\/jfmk11020184","relation":{},"ISSN":["2411-5142"],"issn-type":[{"value":"2411-5142","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,4,30]]}}}