{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,24]],"date-time":"2026-04-24T06:14:53Z","timestamp":1777011293123,"version":"3.51.4"},"reference-count":34,"publisher":"BMJ","issue":"1","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Open Sport Exerc Med"],"accepted":{"date-parts":[[2016,8,10]]},"published-print":{"date-parts":[[2016,10]]},"abstract":"<jats:sec>\n                  <jats:title>Background\/aim<\/jats:title>\n                  <jats:p>Consequences of an anterior cruciate ligament (ACL) injury include worse patient-reported outcomes (PROs) and a decrease in activity level. Muscle function can be improved by targeted exercise. Our aims were to investigate cross-sectional and longitudinal associations among lower extremity muscle function and PROs after ACL injury.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Methods<\/jats:title>\n                  <jats:p>Fifty-four participants (15 women, mean 30\u2005years) with ACL injury or reconstruction, from the Knee Anterior Cruciate Ligament, Nonsurgical versus Surgical Treatment (KANON) trial (<jats:ext-link xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" ext-link-type=\"isrctn\" xlink:href=\"84752559\">ISRCTN84752559<\/jats:ext-link>), were assessed with hop performance, muscle power and postural orientation 3\u2005years (SD 0.85) after ACL injury. PROs at 3 and 5\u2005years after injury included Knee Injury and Osteoarthritis Outcome Score (KOOS) subscales Function in sport and recreation (KOOS Sport\/rec) and Knee-related Quality of life (KOOS QoL), KOOS item Q3 (KOOS Q3), Tegner Activity Scale and Activity Rating Scale (ARS). Partial Spearman's rank-order correlation was used to analyse correlations between muscle function and PROs, controlling for gender and treatment.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Results<\/jats:title>\n                  <jats:p>Numerous cross-sectional correlations were observed between muscle function and PROs (r<jats:sub>sp<\/jats:sub>\u22480.3\u20130.5, p\u22640.045). Worse hop performance and worse postural orientation were associated with worse KOOS scores 2\u2005years later (r<jats:sub>sp<\/jats:sub>\u22650.280, p\u22640.045). Worse muscle power was associated with lower future ARS scores (r<jats:sub>sp<\/jats:sub>=0.281, p=0.044).<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Conclusions<\/jats:title>\n                  <jats:p>The moderate associations suggest that improving muscle function during rehabilitation could improve present and future PROs.<\/jats:p>\n               <\/jats:sec>","DOI":"10.1136\/bmjsem-2016-000154","type":"journal-article","created":{"date-parts":[[2016,10,8]],"date-time":"2016-10-08T20:38:12Z","timestamp":1475959092000},"page":"e000154","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":30,"title":["Muscle function is associated with future patient-reported outcomes in young adults with ACL injury"],"prefix":"10.1136","volume":"2","clinical-trial-number":[{"clinical-trial-number":"isrctn84752559","registry":"10.18810\/isrctn"},{"clinical-trial-number":"isrctn84752559","registry":"10.18810\/isrctn"}],"author":[{"given":"Vala","family":"Flosadottir","sequence":"first","affiliation":[{"name":"Department of Health Sciences, Lund University, Lund, Sweden"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ewa M","family":"Roos","sequence":"additional","affiliation":[{"name":"Research Unit for Musculoskeletal Function and Physiotherapy, Institute of Sports and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Eva","family":"Ageberg","sequence":"additional","affiliation":[{"name":"Department of Health Sciences, Lund University, Lund, 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