Sex and limb differences in hip and knee kinematics and kinetics during anticipated and unanticipated jump landings: implications for anterior cruciate ligament injury
Sex and limb differences in hip and knee kinematics and kinetics during anticipated and unanticipated jump landings: implications for anterior cruciate ligament injury
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DOI：
10.1136/bjsm.2008.055954
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发表时间：
2009-12-01
影响因子：
18.4
通讯作者：
McLean, S. G.
中科院分区：
文献类型：
--
作者：
Brown, T. N.;Palmieri-Smith, R. M.;McLean, S. G.
目的：在本研究中，确定了单腿着陆期间意外（UN）着陆前刺激的时间变化对下肢生物力学的影响以及性别和肢体优势对这些变量的影响。假设减少着陆前 UN 刺激、女性和非优势肢体的时间会显着增加 UN 跳跃着陆期间的高风险着陆生物力学。方法：26 名（13 名男性和 13 名女性）在预期 (AN) 和 UN 单腿（左和右）着陆期间进行了初始接触 (IC) 和峰值姿态 (0-50%) 阶段 (PS) 下肢关节运动学和动力学量化。着陆后跳跃方向通过两个随机排序的光刺激之一控制，在跳跃开始前 (AN) 或在接触地面之前 600 毫秒 (UN1)、500 毫秒 (UN2) 或 400 毫秒 (UN3) 立即出现。结果：具有统计显着性 (p
Objectives: In this study, the effects of temporal changes in unanticipated (UN) prelanding stimuli on lower limb biomechanics and the impact of sex and limb dominance on these variables during single-leg landings were determined. It was hypothesised that reductions in the time of prelanding UN stimuli, female sex, and the non-dominant limb would significantly increase high-risk landing biomechanics during UN jump landings.Methods: 26 (13 men and 13 women) had initial contact (IC) and peak stance (0-50%) phase (PS) lower limb joint kinematics and kinetics quantified during anticipated (AN) and UN single-leg (left and right) landings. Postlanding jump direction was governed via one of two randomly ordered light stimuli, presented either before initiation of the jump (AN), or 600 ms (UN1), 500 ms (UN2) or 400 ms (UN3) immediately before ground contact.Results: Statistically significant (p