Hamstring muscle forces prior to and immediately following an acute sprinting-related muscle strain injury
Hamstring muscle forces prior to and immediately following an acute sprinting-related muscle strain injury
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DOI：
10.1016/j.gaitpost.2010.03.006
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发表时间：
2010-05-01
期刊：
影响因子：
2.4
通讯作者：
Pandy, Marcus G.
中科院分区：
文献类型：
--
作者：
Schache, Anthony G.;Kim, Hyung-Joo;Pandy, Marcus G.
需要彻底了解短跑期间腿筋的生物力学，以优化受伤康复和预防策略。本研究的主要目的是比较不同运动模式以及急性短跑相关肌肉拉伤前后的腘绳肌负荷。双侧运动学和地面反作用力数据采集自一个单一的主题，而步行，慢跑和短跑之前和之后立即涉及右半腱肌和股二头肌长头肌肉的重大损伤。实验数据输入到一个三维的肌肉骨骼模型的身体和使用，连同优化理论，以确定下肢肌肉力量为每个运动任务。腿筋负荷被认为是最大的终端摆动冲刺。腘绳肌贡献了大部分的终端摆动髋关节伸展和膝关节屈曲扭矩，而臀大肌贡献了大部分的立场阶段髋关节伸展扭矩。腓肠肌对终末摆动膝关节屈曲力矩的贡献很小。峰值腿筋力量也大大增加，在终端摆动相比，立场冲刺，但不是步行和慢跑。紧接着肌肉拉伤，腿筋表现出不耐受执行离心型收缩。虽然在终端摆动的峰值腘绳肌力量没有减少受伤后，峰值腘绳肌长度和终端摆动的负功大大减少。这些结果支持的范式，腿筋是最容易受到肌肉拉伤损伤在终端摆动阶段的短跑时，他们正在收缩偏心。(C)2010爱思唯尔有限公司版权所有。
A thorough understanding of the biomechanics of the hamstrings during sprinting is required to optimise injury rehabilitation and prevention strategies. The main aims of this study were to compare hamstrings load across different modes of locomotion as well as before and after an acute sprinting-related muscle strain injury. Bilateral kinematic and ground reaction force data were captured from a single subject whilst walking, jogging and sprinting prior to and immediately following a significant injury involving the right semitendinosis and biceps femoris long head muscles. Experimental data were input into a three-dimensional musculoskeletal model of the body and used, together with optimisation theory, to determine lower-limb muscle forces for each locomotor task. Hamstrings load was found to be greatest during terminal swing for sprinting. The hamstrings contributed the majority of the terminal swing hip extension and knee flexion torques, whilst gluteus maximus contributed most of the stance phase hip extension torque. Gastrocnemius contributed little to the terminal swing knee flexion torque. Peak hamstrings force was also substantially greater during terminal swing compared to stance for sprinting, but not for walking and jogging. Immediately following the muscle strain injury, the hamstrings demonstrated an intolerance to perform an eccentric-type contraction. Whilst peak hamstrings force during terminal swing did not decrease post-injury, both peak hamstrings length and negative work during terminal swing were considerably reduced. These results lend support to the paradigm that the hamstrings are most susceptible to muscle strain injury during the terminal swing phase of sprinting when they are contracting eccentrically. (C) 2010 Elsevier B.V. All rights reserved.