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首页> 外文期刊>Journal of Biomechanics >Gait dynamics on an inclined walkway.
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Gait dynamics on an inclined walkway.

机译：倾斜人行道上的步态动力学。

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Objective: This paper documents research that quantifies and describes the biomechanics of normal gait on inclined surfaces. Design: Experimental, investigative. Background: It is necessary to walk on inclined surfaces to negotiate the natural and built environments. Little research has been conducted on the biomechanics of normal gait on inclined surfaces. Methods: The gait of 11 healthy male volunteers was measured using a Vicon system 370 on an inclinable walkway. Gait was measured at 0 degrees , 5 degrees , 8 degrees and 10 degrees of incline. Passive optical markers were placed on each subject and they walked at a self-selected speed up and down the walkway. Ground reaction forces and EMG were measured. Gait data were analysed in Vicon Clinical Manager. Results: Changes in the dynamics of the lower limbs with respect to incline angles are described. Between subject and between condition differences in biomechanical parameters were significant. Hip flexion increased at heel strike with inclines from -10 degrees to +10 degrees . Knee flexion and ankle dorsiflexion at heel strike increased with increasing angle walking up, but not down. Changes in joint moments and powers due to change in the angle of incline or direction of walking were observed. Conclusions: The mechanisms by which the body enables walking up and downhill, specifically raising and lowering the centre of mass, and preventing slipping, can be seen in the alteration in the dynamics of the lower limbs. Increases in range of motion and muscle strength requirements need to be considered in the design of lower limb prostheses and in orthopaedic and neurological rehabilitation. Relevance: Gait, prosthetics, rehabilitation, balance and falls.
机译：目的：本文记录了定量和描述倾斜表面正常步态的生物力学的研究。设计：实验性，调查性。背景：有必要在倾斜的表面上行走以协商自然和建筑环境。关于正常步态在倾斜表面上的生物力学研究很少。方法：使用Vicon系统370在倾斜的人行道上测量11名健康男性志愿者的步态。在0度，5度，8度和10度倾斜时测量步态。将无源光学标记器放置在每个对象上，它们以自行选择的速度在走道上行走。测量了地面反作用力和EMG。步态数据在Vicon Clinical Manager中进行了分析。结果：描述了下肢相对于倾斜角度的动态变化。受试者之间和条件之间的生物力学参数差异显着。脚跟弯曲时髋屈曲从-10度上升到+10度。脚跟前移时的膝盖屈曲和踝背屈随着向上但不向下行走的角度的增加而增加。观察到由于倾斜角度或行走方向的变化而引起的关节力矩和力量的变化。结论：在下肢动力变化中，可以看出人体能够上下行走的机制，特别是升高和降低重心以及防止滑倒的机制。在下肢假体的设计以及骨科和神经科康复中，需要考虑运动范围和肌肉力量要求的增加。相关性：步态，假肢，康复，平衡和跌倒。

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