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首页> 外文会议>Annual Meeting of the Human Factors and Ergonomics Society(HFES 2007); 20071001-05; Baltimore,MA(US) >Influence of localized muscle fatigue of the knee joint on gait parameters related to slip propensity
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Influence of localized muscle fatigue of the knee joint on gait parameters related to slip propensity

机译：膝关节局部肌肉疲劳对与滑倒倾向有关的步态参数的影响

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摘要

Existing epidemiological evidence suggests that localized muscle fatigue might be considered as an intrinsic risk factor that causes lack of balance control leading to falls. The goal of the study was to examine how localized muscle fatigue of the knee joint (quadriceps) alters gait parameters that are related to slip propensity. Sixteen healthy young participants were recruited to walk across a vinyl floor surface in two different sessions (Fatigue and No fatigue). Kinematic and kinetic data were collected using a three-dimensional video analysis system and force plates during both sessions. The fatigue session results indicated a substantial increase in heel contact velocity (HCV) and required coefficient of friction (RCOF), as well as a decrease in the transitional acceleration of the whole body COM (TA), walking velocity (WV), and step length (SL). In addition, a positive correlation was observed between RCOF and HCV. These findings provide new insights into the biomechanical relationship between localized muscular fatigue and gait parameters linked with slip propensity. The study concluded that localized muscular fatigue affects gait parameters and hence can be considered as a potential risk factor for slip-induced falls.
机译：现有的流行病学证据表明，局部肌肉疲劳可能被认为是导致缺乏平衡控制导致跌倒的内在风险因素。该研究的目的是研究膝关节（股四头肌）的局部肌肉疲劳如何改变与滑倒倾向相关的步态参数。招募了16名健康的年轻参与者，在两个不同的阶段（疲劳和无疲劳）在乙烯基地板上行走。在两个阶段期间，使用三维视频分析系统和测力板收集运动和动力学数据。疲劳阶段的结果表明，脚跟接触速度（HCV）和所需的摩擦系数（RCOF）显着增加，并且全身COM的过渡加速度（TA），步行速度（WV）和步幅都降低了长度（SL）。另外，在RCOF和HCV之间观察到正相关。这些发现提供了新的见解，对局部肌肉疲劳和与滑倒倾向有关的步态参数之间的生物力学关系进行了研究。研究得出结论，局部肌肉疲劳会影响步态参数，因此可以认为是滑倒诱发跌倒的潜在危险因素。

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