caa a22 4500 605459150 CHVBK 20210128100232.0 cr unu---uuuuu 210128e20150401xx s 000 0 eng 10.1007/s00167-013-2815-2 doi (NATIONALLICENCE)springer-10.1007/s00167-013-2815-2 The effect of changing toe direction on knee kinematics during drop vertical jump: a possible risk factor for anterior cruciate ligament injury [Elektronische Daten] [Tomoya Ishida, Masanori Yamanaka, Naoki Takeda, Kentaro Homan, Yuta Koshino, Takumi Kobayashi, Hisashi Matsumoto, Yoshimitsu Aoki] Purpose: The purpose of this study was to examine the effect of changing toe direction on knee kinetics and kinematics associated with anterior cruciate ligament injury during drop vertical jumps. Methods: Fourteen females performed drop vertical jumps under three toe conditions (natural, toe-in, and toe-out). The knee kinetics and kinematics during landing were evaluated using a motion analysis system. Results under three toe conditions were compared using a one-way repeated measures analysis of variance and a post hoc Bonferroni test. Results: Toe-in landing was associated with a significantly greater knee abduction angle, tibial internal rotation angle, and knee abduction moment than the natural and toe-out conditions. Toe-out landing was associated with significantly greater tibial internal rotational angular velocity. Conclusions: Changing toe direction significantly affects knee kinetics and kinematics during landing. It is important to avoid changing toe direction excessively inward or outward during landing to prevent the increases in knee abduction and tibial internal rotation which might increase the risk of ACL injury. Level of evidence: Prognosis, Level IV. Springer-Verlag Berlin Heidelberg, 2013 Anterior cruciate ligament injury nationallicence Injury prevention nationallicence Knee biomechanics nationallicence Landing nationallicence Motion analysis nationallicence Ishida Tomoya Graduate School of Health Sciences, Hokkaido University, Sapporo, Hokkaido, Japan aut Yamanaka Masanori Division of Health Sciences, Department of Rehabilitation Science, Faculty of Health Sciences, Hokkaido University, West 5, North 12, Kitaku, 060-0812, Sapporo, Hokkaido, Japan aut Takeda Naoki Division of Health Sciences, Department of Rehabilitation Science, Faculty of Health Sciences, Hokkaido University, West 5, North 12, Kitaku, 060-0812, Sapporo, Hokkaido, Japan aut Homan Kentaro Graduate School of Health Sciences, Hokkaido University, Sapporo, Hokkaido, Japan aut Koshino Yuta Graduate School of Health Sciences, Hokkaido University, Sapporo, Hokkaido, Japan aut Kobayashi Takumi Hokuto Endowed Chair in Prevention of Joint Disease, Faculty of Health Sciences, Hokkaido University, Sapporo, Hokkaido, Japan aut Matsumoto Hisashi Department of Rehabilitation, Hokushin Orthopedic Hospital, Sapporo, Hokkaido, Japan aut Aoki Yoshimitsu Department of Orthopedic Surgery, Hokushin Orthopedic Hospital, Sapporo, Hokkaido, Japan aut Knee Surgery, Sports Traumatology, Arthroscopy Springer Berlin Heidelberg 23/4(2015-04-01), 1004-1009 0942-2056 23:4<1004 2015 23 167 https://doi.org/10.1007/s00167-013-2815-2 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00167-013-2815-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ishida Tomoya Graduate School of Health Sciences, Hokkaido University, Sapporo, Hokkaido, Japan aut NATIONALLICENCE 700 1- Yamanaka Masanori Division of Health Sciences, Department of Rehabilitation Science, Faculty of Health Sciences, Hokkaido University, West 5, North 12, Kitaku, 060-0812, Sapporo, Hokkaido, Japan aut NATIONALLICENCE 700 1- Takeda Naoki Division of Health Sciences, Department of Rehabilitation Science, Faculty of Health Sciences, Hokkaido University, West 5, North 12, Kitaku, 060-0812, Sapporo, Hokkaido, Japan aut NATIONALLICENCE 700 1- Homan Kentaro Graduate School of Health Sciences, Hokkaido University, Sapporo, Hokkaido, Japan aut NATIONALLICENCE 700 1- Koshino Yuta Graduate School of Health Sciences, Hokkaido University, Sapporo, Hokkaido, Japan aut NATIONALLICENCE 700 1- Kobayashi Takumi Hokuto Endowed Chair in Prevention of Joint Disease, Faculty of Health Sciences, Hokkaido University, Sapporo, Hokkaido, Japan aut NATIONALLICENCE 700 1- Matsumoto Hisashi Department of Rehabilitation, Hokushin Orthopedic Hospital, Sapporo, Hokkaido, Japan aut NATIONALLICENCE 700 1- Aoki Yoshimitsu Department of Orthopedic Surgery, Hokushin Orthopedic Hospital, Sapporo, Hokkaido, Japan aut NATIONALLICENCE 773 0- Knee Surgery, Sports Traumatology, Arthroscopy Springer Berlin Heidelberg 23/4(2015-04-01), 1004-1009 0942-2056 23:4<1004 2015 23 167