{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,26]],"date-time":"2026-08-26T00:05:09Z","timestamp":1787702709604,"version":"build-2784847793"},"reference-count":0,"publisher":"Human Kinetics","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2015,8]]},"abstract":"<jats:sec sec-type=\"context\"><jats:title>Context:<\/jats:title><jats:p>The extent of knee extensor and flexor weakness after disruption of knee ligaments affects a rehabilitation output and functional recovery and may give prognostic information on a possible risk of development of knee osteoarthritis.<\/jats:p><\/jats:sec><jats:sec sec-type=\"objective\"><jats:title>Objective:<\/jats:title><jats:p>The hypothesis tested was whether patients with a multiple-ligament tear would have larger abnormalities in strength of the knee extensors and flexors than patients with an isolated-ligament rupture.<\/jats:p><\/jats:sec><jats:sec sec-type=\"design\"><jats:title>Design:<\/jats:title><jats:p>Cross-sectional study, level III.<\/jats:p><\/jats:sec><jats:sec sec-type=\"setting\"><jats:title>Setting:<\/jats:title><jats:p>Outpatient orthopedic clinic.<\/jats:p><\/jats:sec><jats:sec sec-type=\"participants\"><jats:title>Participants:<\/jats:title><jats:p>3 groups of recreationally active men: noninjured control (CON, n = 12), with an anterior cruciate ligament injury (ACLI, n = 10), and with combined anterior and posterior cruciate ligament injury (APCLI, n = 9), matched according to age, body mass, and height.<\/jats:p><\/jats:sec><jats:sec sec-type=\"intervention\"><jats:title>Intervention:<\/jats:title><jats:p>All patients received conservative treatment and rehabilitation and awaited ligament reconstruction surgery.<\/jats:p><\/jats:sec><jats:sec sec-type=\"main outcome measures\"><jats:title>Main Outcome Measures:<\/jats:title><jats:p>Isokinetic maximum-repetition peak torque per body mass (PT\/BM) and total work (TW), PT and TW limb-symmetry index (LSI), and flexor-to-extensor PT ratio were evaluated during concentric knee extension-flexion movements at lower (60\u00b0\/s) and higher (240\u00b0\/s) isokinetic velocities.<\/jats:p><\/jats:sec><jats:sec sec-type=\"results\"><jats:title>Results:<\/jats:title><jats:p>The main finding was that compared with the individuals with ACLI, patients with APCLI produced in their injured limbs lower mean TW (extension: 30.3%, flexion: 28.2%) and had lower mean TW LSI (extension 74% in APCLI vs 91.6% in ACLI; flexion 61.3% in APCLI vs 90.8% in ACLI) at the higher but not lower speed of isokinetic testing. However, at the lower velocity the quantified size of reduction in PT\/BM and TW was greater in subjects with APCLI than ACLI as compared with the CON individuals.<\/jats:p><\/jats:sec><jats:sec sec-type=\"conclusions\"><jats:title>Conclusions:<\/jats:title><jats:p>After bi-cruciate-ligament injury the capacity to produce torque by concentric muscle contractions throughout knee-extension and-flexion movements performed with high speed is lower in injured limbs than after isolated anterior cruciate ligament tear.<\/jats:p><\/jats:sec>","DOI":"10.1123\/jsr.2014-0157","type":"journal-article","created":{"date-parts":[[2014,8,21]],"date-time":"2014-08-21T16:12:30Z","timestamp":1408637550000},"page":"268-277","source":"Crossref","is-referenced-by-count":6,"title":["Differences in Isokinetic Strength of the Knee Extensors and Flexors in Men With Isolated and Combined Cruciate-Ligament Knee Injury"],"prefix":"10.1123","volume":"24","author":[{"given":"Ewa","family":"Kaminska","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tomasz","family":"Piontek","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marzena","family":"Wiernicka","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Grazyna","family":"Cywinska-Wasilewska","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jacek","family":"Lewandowski","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dawid","family":"Lochynski","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"100","container-title":["Journal of Sport Rehabilitation"],"original-title":[],"link":[{"URL":"https:\/\/journals.humankinetics.com\/view\/journals\/jsr\/24\/3\/article-p268.xml","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.humankinetics.com\/downloadpdf\/journals\/jsr\/24\/3\/article-p268.xml","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2022,5,19]],"date-time":"2022-05-19T23:08:33Z","timestamp":1653001713000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.humankinetics.com\/view\/journals\/jsr\/24\/3\/article-p268.xml"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2015,8]]},"references-count":0,"journal-issue":{"issue":"3"},"URL":"https:\/\/doi.org\/10.1123\/jsr.2014-0157","relation":{},"ISSN":["1056-6716","1543-3072"],"issn-type":[{"value":"1056-6716","type":"print"},{"value":"1543-3072","type":"electronic"}],"subject":[],"published":{"date-parts":[[2015,8]]}}}