{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T19:43:59Z","timestamp":1790711039605,"version":"4.1.0"},"reference-count":90,"publisher":"BMJ","issue":"13","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["Br J Sports Med"],"accepted":{"date-parts":[[2022,12,13]]},"published-print":{"date-parts":[[2023,7]]},"abstract":"<jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>To investigate the prognostic capacity of individual hop tests, hop test batteries and other unilateral functional performance tests following anterior cruciate ligament (ACL) injury.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Design<\/jats:title>\n                    <jats:p>Systematic review with meta-analysis.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Data sources<\/jats:title>\n                    <jats:p>Six databases searched up to June 2021.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Eligibility criteria<\/jats:title>\n                    <jats:p>Studies reporting associations between unilateral lower-limb function (eg, hop tests) following ACL injury and future (\u22653 months) knee-related outcomes.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Of 42 included studies (13\u2009150 participants), all assessed the single-forward hop test and 32 assessed a repeated-forward hop test (crossover hop, triple hop, 6m-timed hop), mostly within a year after ACL injury\/reconstruction. Results of meta-analyses indicated that higher single-forward and repeated-forward hop limb symmetry were associated with higher odds of return-to-sport 1\u20133 years post-ACL reconstruction (OR 2.15; 95%\u2009CI 1.30 to 3.54; OR 2.11; 95%\u2009CI 1.23 to 3.60, respectively). Higher single-forward and repeated-forward hop limb symmetry was associated with better self-reported symptoms and function 1\u201337 years after ACL injury (OR 2.51; 95%\u2009CI 1.62 to 3.88; OR 4.28; 95%\u2009CI 1.65 to 11.08, respectively). Higher limb symmetry on a repeated-forward hop does not appear to be associated with higher odds of successful rehabilitation without ACL reconstruction (OR 1.51; 95%\u2009CI 0.94 to 2.44). Achieving \u226590%\u2009limb symmetry on the single-forward hop was associated with reduced odds of knee osteoarthritis 5\u201337 years after ACL injury (OR 0.46; 95%\u2009CI 0.23 to 0.94).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Very low certainty evidence suggests single-forward and repeated-forward hop tests are prognostic indicators for important knee-related outcomes in individuals after ACL injury and may help stratify individuals at risk of poor outcomes to target rehabilitation interventions.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>PROSPERO registration number<\/jats:title>\n                    <jats:p>CRD42018092197.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1136\/bjsports-2022-105736","type":"journal-article","created":{"date-parts":[[2023,1,20]],"date-time":"2023-01-20T13:20:29Z","timestamp":1674220829000},"page":"855-863","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":39,"title":["Unilateral tests of lower-limb function as prognostic indicators of future knee-related outcomes following anterior cruciate ligament injury: a systematic review and meta-analysis of 13 150 adolescents and adults"],"prefix":"10.1136","volume":"57","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6297-1094","authenticated-orcid":false,"given":"Thomas J","family":"West","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5422-5756","authenticated-orcid":false,"given":"Andrea M","family":"Bruder","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5892-129X","authenticated-orcid":false,"given":"Kay M","family":"Crossley","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9491-0264","authenticated-orcid":false,"given":"Adam G","family":"Culvenor","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"239","published-online":{"date-parts":[[2023,1,20]]},"reference":[{"key":"2024051422440986000_57.13.855.1","doi-asserted-by":"crossref","first-page":"946","DOI":"10.1002\/art.39005","article-title":"Early knee osteoarthritis is evident one year following anterior cruciate ligament reconstruction: a magnetic resonance imaging evaluation","volume":"67","author":"Culvenor","year":"2015","journal-title":"Arthritis Rheumatol"},{"key":"2024051422440986000_57.13.855.2","doi-asserted-by":"publisher","DOI":"10.1177\/0363546506298277"},{"key":"2024051422440986000_57.13.855.3","doi-asserted-by":"publisher","DOI":"10.1136\/bjsports-2015-095898"},{"key":"2024051422440986000_57.13.855.4","doi-asserted-by":"publisher","DOI":"10.1136\/bjsports-2020-102200"},{"key":"2024051422440986000_57.13.855.5","doi-asserted-by":"publisher","DOI":"10.1136\/bjsports-2017-098602"},{"key":"2024051422440986000_57.13.855.6","doi-asserted-by":"crossref","first-page":"696","DOI":"10.1055\/a-1122-8995","article-title":"Evolution of functional recovery using hop test assessment after ACL reconstruction","volume":"41","author":"Rambaud","year":"2020","journal-title":"Int J Sports Med"},{"key":"2024051422440986000_57.13.855.7","doi-asserted-by":"publisher","DOI":"10.1136\/bjsports-2015-095194"},{"key":"2024051422440986000_57.13.855.8","doi-asserted-by":"crossref","first-page":"485","DOI":"10.1007\/s40279-019-01221-7","article-title":"Is it time we better understood the tests we are using for return to sport decision making following ACL reconstruction? 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