{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,30]],"date-time":"2026-03-30T10:19:45Z","timestamp":1774865985461,"version":"3.50.1"},"reference-count":38,"publisher":"BMJ","issue":"1","license":[{"start":{"date-parts":[[2020,12,30]],"date-time":"2020-12-30T00:00:00Z","timestamp":1609286400000},"content-version":"unspecified","delay-in-days":29,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"funder":[{"DOI":"10.13039\/100010805","name":"Medical Research Council of Southeast Sweden","doi-asserted-by":"crossref","award":["FORSS-856741"],"award-info":[{"award-number":["FORSS-856741"]}],"id":[{"id":"10.13039\/100010805","id-type":"DOI","asserted-by":"crossref"}]},{"name":"ALF Grants Region \u00d6sterg\u00f6tland","award":["LIO-798907, LIO-900721"],"award-info":[{"award-number":["LIO-798907, LIO-900721"]}]},{"DOI":"10.13039\/501100006310","name":"Swedish Medical Research Council","doi-asserted-by":"crossref","award":["VR 2015-03687 and VR 2018-02563"],"award-info":[{"award-number":["VR 2015-03687 and VR 2018-02563"]}],"id":[{"id":"10.13039\/501100006310","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/501100005350","name":"Swedish Research Council for Sport Science","doi-asserted-by":"crossref","award":["CIF P2017-0151, P2018-0132 and P2019-0071"],"award-info":[{"award-number":["CIF P2017-0151, P2018-0132 and P2019-0071"]}],"id":[{"id":"10.13039\/501100005350","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Open Sport Exerc Med"],"accepted":{"date-parts":[[2020,12,17]]},"published-print":{"date-parts":[[2020,12]]},"abstract":"<jats:sec>\n                  <jats:title>Objectives<\/jats:title>\n                  <jats:p>To describe self-reported knee function, participation in physical activity and the number of knee surgeries at 3 and 6 months following acute knee injury.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Methods<\/jats:title>\n                  <jats:p>Prospective cohort study. Participants, aged 15\u201340 years with an acute knee injury sustained no more than 6 weeks prior to inclusion, were recruited. There were 279 participants with ACL injury and 101 participants with other acute knee injuries included. Follow-up questionnaires were sent at 3 and 6 months after injury. Demographic information, activity participation, International Knee Documentation Committee subjective knee form (IKDC-SKF) and the Single Assessment Numeric Evaluation (SANE) score were collected. Additional knee injuries were obtained from self-report and medical charts.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Results<\/jats:title>\n                  <jats:p>The IKDC-SKF, SANE and physical activity participation were reduced at 3-month and 6-month follow-up. The number of participants who achieved health-promoting physical activity levels was reduced by 50% at 6-month follow-up compared with before injury. Seventeen per cent of participants with ACL injury and 41% of participants with other acute knee injuries had returned to their preinjury physical activity at 6 months. Participants with ACL injury reported worse knee function, lower physical activity participation and had more surgeries (128 surgeries, including 109 ACL-reconstructions) compared with participants with other acute knee injuries (six surgeries).<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Conclusion<\/jats:title>\n                  <jats:p>Acute knee injuries, including ACL injuries, affected self-reported knee function and physical activity participation for at least 6 months after index injury. More research is needed to understand how best to help people with acute knee injuries return to physical activity and achieve satisfactory knee function.<\/jats:p>\n               <\/jats:sec>","DOI":"10.1136\/bmjsem-2020-000950","type":"journal-article","created":{"date-parts":[[2020,12,30]],"date-time":"2020-12-30T12:23:20Z","timestamp":1609331000000},"page":"e000950","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":7,"title":["Short-term recovery of physical activity and knee function after an acute knee injury"],"prefix":"10.1136","volume":"6","author":[{"given":"Sanne","family":"Fomin","sequence":"first","affiliation":[{"name":"Unit of Physioptherapy, Department of Health, Medicine and Caring Science, Link\u00f6ping University, Link\u00f6ping, Sweden"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"H\u00e5kan","family":"Gauffin","sequence":"additional","affiliation":[{"name":"Orthopaedics. 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