{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,4]],"date-time":"2026-10-04T04:24:57Z","timestamp":1791087897879,"version":"4.1.0"},"reference-count":37,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2012,4,28]],"date-time":"2012-04-28T00:00:00Z","timestamp":1335571200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Knee surg. sports traumatol. arthrosc."],"published-print":{"date-parts":[[2013,4]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Purpose<\/jats:title><jats:p>To examine the effects of different sagittal plane body positions during single\u2010leg landings on biomechanics and muscle activation parameters associated with risk for anterior cruciate ligament (ACL) injury.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Twenty participants performed single\u2010leg drop landings onto a force plate using the following landing styles: self\u2010selected, leaning forward (LFL) and upright (URL). Lower extremity and trunk 3D biomechanics and lower extremity muscle activities were recorded using motion analysis and surface electromyography, respectively. Differences in landing styles were examined using 2\u2010way Repeated\u2010measures ANOVAs (sex \u00d7 landing conditions) followed by Bonferroni pairwise comparisons.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Participants demonstrated greater peak vertical ground reaction force, greater peak knee extensor moment, lesser plantar flexion, lesser or no hip extensor moments, and lesser medial and lateral gastrocnemius and lateral quadriceps muscle activations during URL than during LFL. These modifications of lower extremity biomechanics across landing conditions were similar between men and women.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Leaning forward while landing appears to protect the ACL by increasing the shock absorption capacity and knee flexion angles and decreasing anterior shear force due to the knee joint compression force and quadriceps muscle activation. Conversely, landing upright appears to be ACL harmful by increasing the post\u2010impact force of landing and quadriceps muscle activity while decreasing knee flexion angles, all of which lead to a greater tibial anterior shear force and ACL loading. ACL injury prevention programmes should include exercise regimens to improve sagittal plane body position control during landing motions.<\/jats:p><\/jats:sec>","DOI":"10.1007\/s00167-012-2011-9","type":"journal-article","created":{"date-parts":[[2012,4,27]],"date-time":"2012-04-27T04:19:20Z","timestamp":1335500360000},"page":"888-897","source":"Crossref","is-referenced-by-count":117,"title":["Changing sagittal plane body position during single\u2010leg landings influences the risk of non\u2010contact anterior cruciate ligament injury"],"prefix":"10.1002","volume":"21","author":[{"given":"Yohei","family":"Shimokochi","sequence":"first","affiliation":[{"name":"<!--<label>1<\/label>--> Sports Medicine Research Laboratory, Department of Health and Sport Management, School of Health and Sport Sciences Osaka University of Health and Sport Sciences 1\u20101 Asashirodai, Kumatori\u2010cho 590\u20100496 Sennan\u2010gun Osaka Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jatin P.","family":"Ambegaonkar","sequence":"additional","affiliation":[{"name":"<!--<label>2<\/label>--> Sports Medicine Assessment Research and Testing Laboratory George Mason University Manassas VA USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Eric G.","family":"Meyer","sequence":"additional","affiliation":[{"name":"<!--<label>3<\/label>--> Experimental Biomechanics Laboratory, Biomedical Engineering Lawrence Technological University Southfield MI USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sae Yong","family":"Lee","sequence":"additional","affiliation":[{"name":"<!--<label>4<\/label>--> Department of Physical Education Yonsei University Seoul Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sandra J.","family":"Shultz","sequence":"additional","affiliation":[{"name":"<!--<label>5<\/label>--> Applied Neuromechanics Research Laboratory, Department 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