Effects of quadriceps fatigue on the biomechanics of gait and slip propensity
Effects of quadriceps fatigue on the biomechanics of gait and slip propensity
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DOI：
10.1016/j.gaitpost.2008.04.001
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发表时间：
2008-11-01
期刊：
影响因子：
2.4
通讯作者：
Lockhart, Thurmon E.
中科院分区：
文献类型：
--
作者：
Parijat, Prakriti;Lockhart, Thurmon E.
这项研究探讨了股四头肌下肢疲劳如何改变与滑倒倾向相关的步态变量。招募了 16 名健康的年轻人，在疲劳和不疲劳的状态下在乙烯基地板表面行走。使用三维运动分析系统和测力台收集运动学和动力学数据。结果表明，疲劳试验中脚跟接触速度和所需摩擦系数均显着增加，全身质心过渡加速度和膝关节峰值力矩降低。因此，表明滑倒倾向可能会随着疲劳而增加。此外，在疲劳试验期间，在步态周期的脚跟接触阶段，膝关节屈曲增加，踝关节背屈减少。这些发现为局部肌肉疲劳和与滑倒倾向相关的步态参数之间的生物力学关系提供了新的见解。本研究得出的结论是，局部肌肉疲劳会影响步态参数，因此可以被视为滑倒引起跌倒的潜在危险因素。由 Elsevier B.V. 出版
This study examines how lower extremity fatigue of the quadriceps alters gait variables related to slip propensity. Sixteen healthy young adults were recruited to walk across vinyl floor surfaces in states of fatigue and no fatigue. Kinematic and kinetic data were collected using a three-dimensional motion analysis system and force plates. The results indicated a significant increase in both the heel contact velocity and required coefficient of friction and a decrease in the transitional acceleration of the whole body center of mass and peak knee joint moment in the fatigue trials. Thus, suggesting that slip propensity could increase with fatigue. Additionally, there was increased knee flexion and reduced ankle dorsiflexion at the heel contact phase of the gait cycle during fatigue trials. These findings provide new insights into the biomechanical relationship between localized muscle fatigue and gait parameters associated with slip propensity. The present study concluded that localized muscle fatigue affects gait parameters and hence can be considered as a potential risk factor for slip-induced falls. Published by Elsevier B.V.