{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,24]],"date-time":"2026-09-24T02:07:18Z","timestamp":1790215638500,"version":"4.1.0"},"reference-count":5,"publisher":"SAGE Publications","issue":"6","license":[{"start":{"date-parts":[[1984,11,1]],"date-time":"1984-11-01T00:00:00Z","timestamp":468115200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Am J Sports Med"],"published-print":{"date-parts":[[1984,11]]},"abstract":"<jats:p>Muscle deficits in 58 patients with chronic anterior cruciate ligament (ACL) insufficiency were evaluated after completion of a 6 month rehabilitation program. Quadriceps and hamstring torques were measured on a modified Cybex II isokinetic dynamometer. Twenty- nine of our patients were tested just prior to undergoing ACL reconstruction, and patients who were continuing to tolerate their conditions served as controls.<\/jats:p>\n                  <jats:p>For the surgical group, significant quadriceps deficits (P &lt; 0.01) were found for all speeds and at both the 30 and 60\u00b0 positions. The nonsurgical group had sig nificant deficits at the 30\u00b0 position at 180\u00b0\/sec, and at 60\u00b0 for the 0\u00b0\/sec and 30\u00b0\/sec. However, in comparing the two groups no significant differences were noted.<\/jats:p>\n                  <jats:p>Regarding hamstring deficits in the surgical group, significant deficits were seen only at 30\u00b0 of flexion at 180\u00b0\/sec. The nonsurgical group had similar deficits.<\/jats:p>\n                  <jats:p>Of interest was the observation that the ham string:quadriceps (H:Q) ratio was found to be both speed-position dependent.<\/jats:p>\n                  <jats:p>Overall, no correlation was found between the pres ence of strength deficits following a rehabilitation pro gram and the need for surgery.<\/jats:p>","DOI":"10.1177\/036354658401200606","type":"journal-article","created":{"date-parts":[[2007,6,21]],"date-time":"2007-06-21T20:46:52Z","timestamp":1182458812000},"page":"436-440","source":"Crossref","is-referenced-by-count":32,"title":["Torque-velocity relationships of the knee extensor and flexor muscles in individuals sustaining injuries of the anterior cruciate ligament"],"prefix":"10.1177","volume":"12","author":[{"given":"Sarah M.","family":"Murray","sequence":"first","affiliation":[{"name":"The Sports Medicine Service, The Hospital for Special Surgery, affiliated with The New York Hospital, Cornell University Medical College, New York, New York"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Russell F.","family":"Warren","sequence":"additional","affiliation":[{"name":"The Sports Medicine Service, The Hospital for Special Surgery, affiliated with The New York Hospital, Cornell University Medical College, New York, New York"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"James C.","family":"Otis","sequence":"additional","affiliation":[{"name":"The Sports Medicine Service, The Hospital for Special Surgery, affiliated with The New York Hospital, Cornell University Medical College, New York, New York"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michael","family":"Kroll","sequence":"additional","affiliation":[{"name":"The Sports Medicine Service, The Hospital for Special Surgery, affiliated with The New York Hospital, Cornell University Medical College, New York, New York"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Thomas L.","family":"Wickiewicz","sequence":"additional","affiliation":[{"name":"The Sports Medicine Service, The Hospital for Special Surgery, affiliated with The New York Hospital, Cornell University Medical College, New York, New York"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[1984,11,1]]},"reference":[{"key":"atypb1","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-198365020-00006"},{"key":"atypb2","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-198365020-00004"},{"key":"atypb3","unstructured":"Perrine JJ, Edgerton VR Muscle force-velocity and power-velocity relationships under isometric loading Med Sci Sports 10. 159-166, 1978"},{"key":"atypb4","doi-asserted-by":"crossref","unstructured":"Wickiewicz TL , Roy R., Powell P., et al Muscle architecture of the human lower limb Clin Orthop 171. 317, 1983","DOI":"10.1097\/00003086-198310000-00042"},{"key":"atypb5","doi-asserted-by":"publisher","DOI":"10.2519\/jospt.1981.3.2.48"}],"container-title":["The American Journal of Sports Medicine"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/036354658401200606","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/036354658401200606","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T09:37:42Z","timestamp":1777369062000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/036354658401200606"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1984,11]]},"references-count":5,"journal-issue":{"issue":"6","published-print":{"date-parts":[[1984,11]]}},"alternative-id":["10.1177\/036354658401200606"],"URL":"https:\/\/doi.org\/10.1177\/036354658401200606","relation":{},"ISSN":["0363-5465","1552-3365"],"issn-type":[{"value":"0363-5465","type":"print"},{"value":"1552-3365","type":"electronic"}],"subject":[],"published":{"date-parts":[[1984,11]]}}}