{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T19:14:22Z","timestamp":1790018062106,"version":"4.0.1"},"reference-count":52,"publisher":"SAGE Publications","issue":"12","license":[{"start":{"date-parts":[[2014,10,10]],"date-time":"2014-10-10T00:00:00Z","timestamp":1412899200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Am J Sports Med"],"published-print":{"date-parts":[[2014,12]]},"abstract":"<jats:sec>\n                    <jats:title>Background:<\/jats:title>\n                    <jats:p>Single-legged squat mechanics change after anterior cruciate ligament (ACL) reconstruction and rehabilitation, but it is unclear if changes in squat mechanics are graft specific.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Purpose:<\/jats:title>\n                    <jats:p>To investigate graft differences in biomechanics of the knee, hip, and trunk during the single-legged squat in patients with ACL-reconstructed knees, determine if these factors were associated with deficits in knee extension moment, and determine if subjective knee function and squat biomechanics are related.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Study Design:<\/jats:title>\n                    <jats:p>Cross-sectional study; Level of evidence, 3.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>A total of 106 individuals were grouped based on surgical status and graft type (51 control, 34 bone\u2013patellar tendon\u2013bone [BPTB], 21 ipsilateral semitendinosus and gracilis autograft [ISGA]). Motion capture interfaced with force plates was used to capture single-legged squat performance in the ACL reconstructed and dominant control limbs. Variables were captured at peak knee flexion.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>Controls exhibited greater knee extension moment ( P = .04), knee flexion ( P = .002), and hip adduction angles ( P = .04) compared with the reconstructed groups. The ISGA group demonstrated greater forward ( P = .01) and lateral ( P = .002) trunk flexion over the reconstructed limb. Summated extension moment did not differ between groups ( P = .42). Knee extension moment was correlated with lateral trunk flexion ( r = \u22120.31, P = .03) in the control group and knee flexion angle ( r = \u22120.44, P = .04) in the ISGA group. Subjective knee function scores were correlated with lateral trunk flexion ( r = \u22120.45, P = .008) in the BPTB group and with hip adduction angle ( r = \u22120.46, P = .04) and hip extension moment ( r = 0.48, P = .03) in the ISGA group.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>Knee and hip biomechanics were related to surgical status but not graft type. Increased forward and lateral trunk motion in the ISGA group may be a mechanism to protect the knee by minimizing motion during squatting or related to surgical selection bias. Secondary findings (summated extensor moments and correlations) most likely represent a strategy to shift the squat demands from the knee to the hip.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Clinical Relevance:<\/jats:title>\n                    <jats:p>Clinicians should target these neuromuscular deficits during rehabilitation and training programs after ACL reconstruction.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/0363546514552630","type":"journal-article","created":{"date-parts":[[2014,10,11]],"date-time":"2014-10-11T00:18:16Z","timestamp":1412986696000},"page":"2979-2987","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":29,"title":["Squatting Mechanics in People With and Without Anterior Cruciate Ligament Reconstruction"],"prefix":"10.1177","volume":"42","author":[{"given":"David R.","family":"Bell","sequence":"first","affiliation":[{"name":"Department of Kinesiology, University of Wisconsin\u2013Madison, Madison, Wisconsin"},{"name":"Wisconsin Injury in Sport Laboratory, University of Wisconsin\u2013Madison, Wisconsin"},{"name":"Department of Orthopedics and Rehabilitation, University of Wisconsin\u2013Madison, Wisconsin"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stephanie M.","family":"Kulow","sequence":"additional","affiliation":[{"name":"Department of Kinesiology, University of Wisconsin\u2013Madison, Madison, Wisconsin"},{"name":"Wisconsin Injury in Sport Laboratory, University of Wisconsin\u2013Madison, Wisconsin"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mikel R.","family":"Stiffler","sequence":"additional","affiliation":[{"name":"Department of Kinesiology, University of Wisconsin\u2013Madison, Madison, Wisconsin"},{"name":"Wisconsin Injury in Sport Laboratory, University of Wisconsin\u2013Madison, Wisconsin"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mason D.","family":"Smith","sequence":"additional","affiliation":[{"name":"Department of Kinesiology, University of Wisconsin\u2013Madison, Madison, Wisconsin"},{"name":"Wisconsin Injury in Sport Laboratory, University of Wisconsin\u2013Madison, Wisconsin"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2014,10,10]]},"reference":[{"key":"bibr1-0363546514552630","doi-asserted-by":"publisher","DOI":"10.1186\/1471-2474-11-265"},{"key":"bibr2-0363546514552630","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-008-0645-4"},{"key":"bibr3-0363546514552630","doi-asserted-by":"publisher","DOI":"10.1016\/0021-9290(88)90225-4"},{"key":"bibr4-0363546514552630","doi-asserted-by":"publisher","DOI":"10.1016\/0021-9290(90)90054-7"},{"key":"bibr5-0363546514552630","doi-asserted-by":"publisher","DOI":"10.4085\/1062-6050-49.2.01"},{"key":"bibr6-0363546514552630","doi-asserted-by":"publisher","DOI":"10.4085\/1062-6050-49.3.21"},{"key":"bibr7-0363546514552630","doi-asserted-by":"publisher","DOI":"10.1177\/0363546509337934"},{"key":"bibr8-0363546514552630","doi-asserted-by":"publisher","DOI":"10.1123\/jab.22.1.41"},{"key":"bibr9-0363546514552630","volume-title":"Statistical Power Analysis 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