Biomechanical analysis of weight bearing force and muscle activation levels in the lower extremities during gait with a walker.
Biomechanical analysis of weight bearing force and muscle activation levels in the lower extremities during gait with a walker.
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步行器步态期间下肢承重力和肌肉激活水平的生物力学分析。
DOI：
10.18926/amo/32008
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发表时间：
2001
影响因子：
0.5
通讯作者：
T. Ishikura
中科院分区：
文献类型：
--
作者：
T. Ishikura
用测力板和表面肌电图仪检测了步行器用于部分负重步态和作为逐渐提高肌肉激活水平的方法的生物力学。结果表明，步行器步态中的负重力由髋关节屈曲角度决定。对于每个步幅，该值保持不变，表明步行者可以用于部分负重步态。此外，在正常步态和不同髋关节屈曲角度步行者的步态中，单位时间内股直肌和股二头肌的肌肉激活水平与负重力相关，并且在每一步都是恒定的。此外，肌肉的激活水平与在特定负荷水平的开放动链阻力运动中观察到的水平一致。这些发现表明，正常步态和步行者步态可能是一种逐渐提高肌肉激活水平的方法。
The biomechanics of using a walker for the partial weight bearing gait and as a method for gradually increasing the muscle activation level were examined with a force plate and surface electromyography. The results showed that the weight bearing force during gait with a walker is determined by the flexion angle of the hip joint. The value remains constant for each stride, indicating that a walker can be used for the partial weight bearing gait. Moreover, the muscle activation levels in the rectus femoris muscle and biceps femoris muscle per unit time during normal gait and gait with a walker with varying hip joint flexion angles were found to be correlated with the weight bearing force and to be constant for each stride. In addition, the muscle activation level was consistent with the level observed during the open kinetic chain resistance exercise with a specific loading level. These findings suggest that normal gait and gait with a walker may be applicable as a method for gradually increasing the muscle activation level.