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Potential for non-contact ACL injury between step-close-jump and hop-jump tasks
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نویسنده
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wang l.-i. ,gu c.-y. ,chen w.-l. ,chang m.-s.
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منبع
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journal of sports science and medicine - 2010 - دوره : 9 - شماره : 1 - صفحه:134 -139
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چکیده
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This study aimed to compare the kinematics and kinetics during the landing of hop-jump and step-close-jump movements in order to provide further inferring that the potential risk of acl injuries. eleven elite male volleyball players were recruited to perform hop-jump and step-close-jump tasks. lower extremity kinematics and ground reaction forces during landing in stop-jump tasks were recorded. lower extremity kinetics was calculated by using an inverse dynamic process. step-close-jump tasks demonstrated smaller peak proximal tibia anterior shear forces during the landing phase. in step-close-jump tasks,increasing hip joint angular velocity during initial foot-ground contact decreased peak posterior ground reaction force during the landing phase,which theoretically could reduce the risk of acl injury. © journal of sports science and medicine.
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کلیدواژه
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Inverse dynamics; Shear force; Stop-jump
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آدرس
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department of physical education,national dong hwa university,no. 123,hua-hsi rd, Taiwan, department of physical education,national dong hwa university,no. 123,hua-hsi rd, Taiwan, department of physical education,national dong hwa university,no. 123,hua-hsi rd, Taiwan, center of physical education,tzu chi university, Taiwan
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Authors
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