{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,18]],"date-time":"2026-09-18T16:52:17Z","timestamp":1789750337208,"version":"4.0.1"},"reference-count":46,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2022,5,9]],"date-time":"2022-05-09T00:00:00Z","timestamp":1652054400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Patellar tendinopathy (PT) in professional volleyball players can have an impact on their careers. We evaluated the impact of this pathology in this specific population in terms of isokinetic strength and jumping performances. Thirty-six professional male volleyball players (mean age: 24.8 \u00b1 5.2) performed isokinetic knee assessments, single-leg countermovement jumps and one leg hop test. They filled out the Victorian Institute of Sport Assessment-Patella (VISA-P) score. Two groups were assessed: \u201cPT group\u201d (n = 15) and \u201ccontrol group\u201d (n = 21). The VISA-P score was lower in the PT group (p &lt; 0.0001). No difference was found between the isokinetic strength limb symmetry index and the jump performance limb symmetry index. The healthy legs of the control group were compared with the affected (PT+) and the unaffected legs (PT\u2212) of the PT group. Compared with the healthy legs, both PT+ and PT\u2212 legs showed decreased values of quadriceps and hamstring strengths. Only PT+ legs scored lower than healthy legs in countermovement jumps and hop tests. No differences were found between PT+ and PT\u2212 legs for muscle strengths and jumps. A low correlation existed between quadriceps strength and jumping performances (r &gt; 0.3; p &lt; 0.001). Volleyball players with PT showed a decrease in the isokinetic knee strength. This strength deficit was found both on the symptomatic legs and the asymptomatic ones. Jumps were only significantly altered on the pathological legs. Highlighting that the unaffected limbs were also impaired in addition to the affected limbs may help provide a better adaptation of the rehabilitation management.<\/jats:p>","DOI":"10.3390\/s22093590","type":"journal-article","created":{"date-parts":[[2022,5,10]],"date-time":"2022-05-10T00:30:28Z","timestamp":1652142628000},"page":"3590","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Consequences of Patellar Tendinopathy on Isokinetic Knee Strength and Jumps in Professional Volleyball Players"],"prefix":"10.3390","volume":"22","author":[{"given":"Marie","family":"Chantrelle","sequence":"first","affiliation":[{"name":"Service de M\u00e9decine Physique et R\u00e9adaptation Locomotrice et Respiratoire, CHU Nantes, Nantes Universit\u00e9, 44093 Nantes, France"},{"name":"D\u00e9partement de M\u00e9decine Physique et de R\u00e9adaptation, Centre Hospitalier Universitaire d\u2019Angers, 49000 Angers, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pierre","family":"Menu","sequence":"additional","affiliation":[{"name":"Service de M\u00e9decine Physique et R\u00e9adaptation Locomotrice et Respiratoire, CHU Nantes, Nantes Universit\u00e9, 44093 Nantes, France"},{"name":"Service de M\u00e9decine du Sport, CHU Nantes, Nantes Universit\u00e9, 44093 Nantes, France"},{"name":"Institut R\u00e9gional de M\u00e9decine du Sport (IRMS), 44093 Nantes, France"},{"name":"Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton, ONIRIS, Nantes Universit\u00e9, 44042 Nantes, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0303-7293","authenticated-orcid":false,"given":"Marie","family":"Gernigon","sequence":"additional","affiliation":[{"name":"CIAMS, Complexit\u00e9, Innovation, Activit\u00e9s Motrices et Sportives, Universit\u00e9 Paris-Saclay, 91405 Orsay, France"},{"name":"CIAMS, Complexit\u00e9, Innovation, Activit\u00e9s Motrices et Sportives, Universit\u00e9 d\u2019Orl\u00e9ans, 45067 Orl\u00e9ans, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bastien","family":"Louguet","sequence":"additional","affiliation":[{"name":"Service de M\u00e9decine du Sport, CHU Nantes, Nantes Universit\u00e9, 44093 Nantes, France"},{"name":"Institut R\u00e9gional de M\u00e9decine du Sport (IRMS), 44093 Nantes, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marc","family":"Dauty","sequence":"additional","affiliation":[{"name":"Service de M\u00e9decine Physique et R\u00e9adaptation Locomotrice et Respiratoire, CHU Nantes, Nantes Universit\u00e9, 44093 Nantes, France"},{"name":"Service de M\u00e9decine du Sport, CHU Nantes, Nantes Universit\u00e9, 44093 Nantes, France"},{"name":"Institut R\u00e9gional de M\u00e9decine du Sport (IRMS), 44093 Nantes, France"},{"name":"Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton, ONIRIS, Nantes Universit\u00e9, 44042 Nantes, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8139-814X","authenticated-orcid":false,"given":"Alban","family":"Fouasson-Chailloux","sequence":"additional","affiliation":[{"name":"Service de M\u00e9decine Physique et R\u00e9adaptation Locomotrice et Respiratoire, CHU Nantes, Nantes Universit\u00e9, 44093 Nantes, France"},{"name":"Service de M\u00e9decine du Sport, CHU Nantes, Nantes Universit\u00e9, 44093 Nantes, France"},{"name":"Institut R\u00e9gional de M\u00e9decine du Sport (IRMS), 44093 Nantes, France"},{"name":"Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton, ONIRIS, Nantes Universit\u00e9, 44042 Nantes, France"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,5,9]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1183","DOI":"10.1097\/00005768-199808000-00001","article-title":"Etiology, Diagnosis, and Treatment of Tendonitis: An Analysis of the Literature","volume":"30","author":"Almekinders","year":"1998","journal-title":"Med. 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