{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,19]],"date-time":"2026-01-19T13:23:17Z","timestamp":1768828997787,"version":"3.49.0"},"reference-count":35,"publisher":"National Athletic Trainers' Association","issue":"12","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2021,12,1]]},"abstract":"<jats:sec>\n                  <jats:title>Context<\/jats:title>\n                  <jats:p>A relationship between a history of sport-related concussion (SRC) and lower extremity injury has been well established in the literature.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Objective<\/jats:title>\n                  <jats:p>To determine if biomechanical differences existed during a double-limb jump landing between athletes who had been released to return to play after SRC and healthy matched control individuals.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Design<\/jats:title>\n                  <jats:p>Cross-sectional study.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Setting<\/jats:title>\n                  <jats:p>Health system\u2013based outpatient sports medicine center.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Patients or Other Participants<\/jats:title>\n                  <jats:p>A total of 21 participants with SRC (age = 15.38 \u00b1 1.77 years, height = 169.23 \u00b1 8.59 cm, mass = 63.43 \u00b1 7.39 kg, time since release to return to sport after SRC = 16.33 \u00b1 12.7 days) were compared with 21 age-, sex-, and activity-matched healthy participants serving as controls (age = 15.36 \u00b1 1.73 years, height = 169.92 \u00b1 11.1 cm, mass = 65.62 \u00b1 12.08 kg).<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Main Outcome Measure(s)<\/jats:title>\n                  <jats:p>Biomechanical performance during the double-limb jump landing was assessed using a motion-capture system and force plates. The average of 3 consecutive trials was used to calculate lower extremity joint kinetics and kinematics. The variables of interest were internal knee-extension moment, internal varus moment, and total sagittal-plane knee displacement for the dominant and nondominant limbs. Independent t tests were performed to examine the differences between SRC and control groups for the variables of interest.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Results<\/jats:title>\n                  <jats:p>No differences existed between groups for the descriptive data. The SRC group demonstrated greater internal knee-extension moments in the dominant (\u22120.028 \u00b1 0.009 Nm\/kg, P = .003) and nondominant (\u22120.018 \u00b1 0.007, P = .02) limbs. The SRC group also exhibited greater internal varus moments in the dominant (0.012 \u00b1 0.004 Nm\/kg, P = .005) and nondominant (0.010 \u00b1 0.003, P = .005) limbs. For sagittal-plane knee displacement, the SRC group displayed less knee-flexion displacement in the dominant (\u221212.56 \u00b1 4.67\u00b0, P = .01) but not the nondominant (\u22128.30 \u00b1 4.91\u00b0, P = .10) limb.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Conclusions<\/jats:title>\n                  <jats:p>Athletes who had been released for return to sport after SRC landed with greater knee valgus than healthy matched control participants.<\/jats:p>\n               <\/jats:sec>","DOI":"10.4085\/533-20","type":"journal-article","created":{"date-parts":[[2021,2,24]],"date-time":"2021-02-24T19:30:24Z","timestamp":1614195024000},"page":"1306-1312","source":"Crossref","is-referenced-by-count":8,"title":["Movement Patterns During a Jump-Landing Task in Athletes After Sport-Related Concussion and Healthy Control Individuals"],"prefix":"10.4085","volume":"56","author":[{"given":"Bobby Jean","family":"Lee","sequence":"first","affiliation":[{"name":"Texas Health Sports Medicine, Fort Worth, TX"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Damond","family":"Blueitt","sequence":"additional","affiliation":[{"name":"Orthopedic Specialty Associates, Fort Worth, TX"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Joseph","family":"Hannon","sequence":"additional","affiliation":[{"name":"Texas Health Sports Medicine, Fort Worth, TX"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shiho","family":"Goto","sequence":"additional","affiliation":[{"name":"Texas Health Sports Medicine, Fort Worth, TX"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Craig","family":"Garrison","sequence":"additional","affiliation":[{"name":"Ben Hogan Sports Medicine, Fort Worth, TX"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"2557","published-online":{"date-parts":[[2021,2,24]]},"reference":[{"key":"2021121522023278700_i1062-6050-56-12-1306-b01","doi-asserted-by":"crossref","unstructured":"Langlois\n              JA,\n            \n            \n              Rutland-Brown\n              W,\n            \n            \n              Wald\n              MM.\n            \n          \n          The epidemiology and impact of traumatic brain injury: a brief overview.\n\t\t\t\t\tJ Head Trauma Rehabil.\n\t\t\t\t\t2006;\n\t\t\t\t\t21(5):\n\t\t\t\t\t375\u2013\n\t\t\t\t\t378.\n\t\t\t\t\tdoi:10.1097\/00001199-200609000-00001","DOI":"10.1097\/00001199-200609000-00001"},{"key":"2021121522023278700_i1062-6050-56-12-1306-b02","doi-asserted-by":"crossref","unstructured":"Daneshvar\n              DH,\n            \n            \n              Nowinski\n              CJ,\n            \n            \n              McKee\n              AC,\n            \n   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DF,\n            \n            \n              Herman\n              DC,\n            \n            \n              Jones\n              DL,\n            \n            et al.\n          \n          Lower extremity stiffness changes after concussion in collegiate football players.\n\t\t\t\t\tMed Sci Sport Exerc.\n\t\t\t\t\t2017;\n\t\t\t\t\t49(1):\n\t\t\t\t\t167\u2013\n\t\t\t\t\t172.\n\t\t\t\t\tdoi:10.1249\/MSS.0000000000001067","DOI":"10.1249\/MSS.0000000000001067"},{"key":"2021121522023278700_i1062-6050-56-12-1306-b31","doi-asserted-by":"crossref","unstructured":"Hewett\n              TE,\n            \n            \n              Myer\n              GD,\n            \n            \n              Ford\n              KR,\n            \n            et al.\n          \n          Biomechanical measures of neuromuscular control and valgus loading of the knee predict anterior cruciate ligament injury risk in female athletes: a prospective study.\n\t\t\t\t\tAm J Sports 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Schilaty\n              ND,\n            \n            \n              Larson\n              DR,\n            \n            \n              Hewett\n              TE.\n            \n          \n          Effect of a concussion on anterior cruciate ligament injury risk in a general population.\n\t\t\t\t\tSports Med.\n\t\t\t\t\t2020;\n\t\t\t\t\t50(6):\n\t\t\t\t\t1203\u2013\n\t\t\t\t\t1210.\n\t\t\t\t\tdoi:10.1007\/s40279-020-01262-3","DOI":"10.1007\/s40279-020-01262-3"},{"key":"2021121522023278700_i1062-6050-56-12-1306-b34","doi-asserted-by":"crossref","unstructured":"Chiu\n              SL,\n            \n            \n              Osternig\n              L,\n            \n            \n              Chou\n              LS.\n            \n          \n          Concussion induces gait inter-joint coordination variability under conditions of divided attention and obstacle crossing.\n\t\t\t\t\tGait 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