{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T19:20:21Z","timestamp":1790796021452,"version":"4.1.0"},"reference-count":49,"publisher":"Wiley","issue":"12","license":[{"start":{"date-parts":[[2022,9,24]],"date-time":"2022-09-24T00:00:00Z","timestamp":1663977600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Scandinavian Med Sci Sports"],"published-print":{"date-parts":[[2022,12]]},"abstract":"<jats:p>After anterior cruciate ligament reconstruction (ACLR), there are differences in the neuromuscular deficits observed in patients with bone\u2010patellar tendon\u2010bone (BPTB) and with hamstring tendon (HT) autografts. The differences in knee extensor and flexor strength are commonly reported, but analyses have largely focused on peak torque metrics despite the requirement to generate torque through range when returning to sport. The aim of this study was to investigate the angle\u2010specific strength and strength asymmetry differences between BPTB and HT around the time of return to play after ACLR. A total of 357 male field sport athletes with either a BPTB (<jats:italic>n<\/jats:italic>\u00a0=\u00a0297) or an HT (<jats:italic>n<\/jats:italic>\u00a0=\u00a060) autograft underwent concentric knee flexor and extensor isokinetic strength testing 9\u00a0months post\u2010ACLR. Angle\u2010specific torques were compared between grafts and limbs using 1D Statistical Parametric Mapping and discrete\u2010point variables. Inter\u2010limb extensor torque asymmetry was greater in BTPB than HT at knee angles of &gt;30\u00b0 (<jats:italic>p<\/jats:italic>\u00a0=\u00a00.001, peak <jats:italic>d<\/jats:italic>\u00a0=\u00a05.53), with flexor torque asymmetry lower in BPTB than HT at flexion angles of &gt;25\u00b0 (<jats:italic>p<\/jats:italic>\u00a0=\u00a00.001, peak <jats:italic>d<\/jats:italic>\u00a0=\u00a02.68). Angle of maximum asymmetry and angle of operated limb peak torque differed in knee extension for BPTB (<jats:italic>p<\/jats:italic>\u2009&lt;\u20090.001, <jats:italic>d<\/jats:italic>\u00a0=\u00a00.32) but not HT, whereas knee flexion angle of maximum asymmetry and operated limb peak torque differed in both BTPB (<jats:italic>p<\/jats:italic>\u2009&lt;\u20090.001, <jats:italic>d<\/jats:italic>\u00a0=\u00a00.75) and HT (<jats:italic>p<\/jats:italic>\u2009&lt;\u20090.001, <jats:italic>d<\/jats:italic>\u00a0=\u00a00.43). Graft type affected extensor torque at knee angles of 67\u00b0\u201385\u00b0 and flexor torque at knee angles of 27\u00b0\u201385\u00b0. Angle\u2010specific strength analysis may inform the rehabilitation process and improve rehabilitation and return\u2010to\u2010play decision making strategies in comparison with the use of peak torque values alone.<\/jats:p>","DOI":"10.1111\/sms.14229","type":"journal-article","created":{"date-parts":[[2022,9,5]],"date-time":"2022-09-05T12:00:31Z","timestamp":1662379231000},"page":"1781-1790","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":19,"title":["Angle\u2010specific analysis of knee strength deficits after <scp>ACL<\/scp> reconstruction with patellar and hamstring tendon autografts"],"prefix":"10.1111","volume":"32","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4305-7093","authenticated-orcid":false,"given":"Luke M.","family":"Hart","sequence":"first","affiliation":[{"name":"Sports Medicine Department Sports Surgery Clinic  Dublin Ireland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Erwan","family":"Izri","sequence":"additional","affiliation":[{"name":"Sports Medicine Department Sports Surgery Clinic  Dublin Ireland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0434-1489","authenticated-orcid":false,"given":"Enda","family":"King","sequence":"additional","affiliation":[{"name":"Sports Medicine Department Sports Surgery Clinic  Dublin Ireland"},{"name":"Department of Life Sciences University of Roehampton  London UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8134-6764","authenticated-orcid":false,"given":"Katherine A. 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