{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T01:10:49Z","timestamp":1790817049685,"version":"4.1.0"},"reference-count":37,"publisher":"National Athletic Trainers' Association","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2014,6,1]]},"abstract":"<jats:sec><jats:title>Context:<\/jats:title><jats:p>Asymmetries subsist after anterior cruciate ligament reconstruction (ACL-R), and it is unclear how lower limb motion is altered in the context of a dynamic movement.<\/jats:p><\/jats:sec><jats:sec><jats:title>Objective:<\/jats:title><jats:p>To highlight the alterations observed in the injured limb (IL) during the performance of a dynamic movement after ACL-R.<\/jats:p><\/jats:sec><jats:sec><jats:title>Design:<\/jats:title><jats:p>Cross-sectional study.<\/jats:p><\/jats:sec><jats:sec><jats:title>Setting:<\/jats:title><jats:p>Research laboratory.<\/jats:p><\/jats:sec><jats:sec><jats:title>Patients or Other Participants:<\/jats:title><jats:p>A total of 11 men (age = 23.3 \u00b1 3.8 years, mass = 81.2 \u00b1 17.0 kg) who underwent ACL-R took part in this study 7.3 \u00b1 1.1 months (range = 6\u20139 months) after surgery.<\/jats:p><\/jats:sec><jats:sec><jats:title>Intervention(s):<\/jats:title><jats:p>Kinematic and kinetic analyses of a single-legged squat jump were performed. The uninjured leg (UL) was used as the control variable.<\/jats:p><\/jats:sec><jats:sec><jats:title>Main Outcome Measure(s):<\/jats:title><jats:p>Kinematic and kinetic variables.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results:<\/jats:title><jats:p>Jump height was 24% less for the IL than the UL (F1,9 = 23.3, P = .001), whereas the push-off phase duration was similar for both lower limbs (P = .96). Knee-joint extension (F1,9 = 11.4, P = .009), and ankle plantar flexion (F1,9 = 22.6, P = .001) were less at takeoff for the IL than the UL. The hip angle at takeoff was not different between lower limbs (P = .09). We found that total moment was 14% less (F1,9 = 11.1, P = .01) and total power was 35% less (F1,9 = 24.2, P = .001) for the IL than the UL. Maximal hip (P = .09) and knee (P = .21) power was not different between legs. The IL had 34% less maximal ankle power (F1,9 = 11.3, P = .009) and 31% less angular velocity of ankle plantar flexion (F1,9 = 17.8, P = .004) than the UL.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions:<\/jats:title><jats:p>At 7.3 months after ACL-R, motion alterations were present in the IL, leading to a decrease in dynamic movement performance. Enhancing the tools for assessing articular and muscular variables during a multijoint movement would help to individualize rehabilitation protocols after ACL-R.<\/jats:p><\/jats:sec>","DOI":"10.4085\/1062-6050-49.3.11","type":"journal-article","created":{"date-parts":[[2014,5,19]],"date-time":"2014-05-19T19:27:21Z","timestamp":1400527641000},"page":"311-316","source":"Crossref","is-referenced-by-count":27,"title":["Motion Alterations After Anterior Cruciate Ligament Reconstruction: Comparison of the Injured and Uninjured Lower Limbs During a Single-Legged Jump"],"prefix":"10.4085","volume":"49","author":[{"given":"Beno\u00eet Pairot","family":"de Fontenay","sequence":"first","affiliation":[{"name":"Universit\u00e9 de Lyon\u2014Universit\u00e9 Claude Bernard, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sebastien","family":"Argaud","sequence":"first","affiliation":[{"name":"Universit\u00e9 de Lyon\u2014Universit\u00e9 Claude Bernard, 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