Gait dynamics on an inclined walkway
Gait dynamics on an inclined walkway
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DOI：
10.1016/j.jbiomech.2005.07.025
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发表时间：
2006-01-01
影响因子：
2.4
通讯作者：
Vickers, Deborah R.
中科院分区：
文献类型：
--
作者：
McIntosh, Andrew Stuart;Beatty, Karen T.;Vickers, Deborah R.
目的：本文记录研究，量化和描述的生物力学的正常步态在倾斜的表面上。设计：实验，调查。背景：这是必要的，走在倾斜的表面上谈判的自然和建筑环境。很少有研究已经进行了正常步态的生物力学在倾斜surfaces.Methods：步态的I I健康男性志愿者使用Vicon系统370在可倾斜的走道上进行了测量。在0度、5度、8度和10度倾斜度下测量步态。被动光学标记被放置在每个主题，他们走在一个自我选择的速度上下走道。测量地面反力和肌电图。步态数据在Vicon Clinical Manager.Results中进行了分析：描述了下肢动力学随倾斜角度的变化。受试者之间和条件之间的生物力学参数差异。意义重大髋关节屈曲度在脚跟着地时增加，倾斜度从-10度到+10度。膝关节屈曲和踝关节背屈在脚跟罢工增加的角度走上，但不下降。由于倾斜角或行走方向的变化，关节力矩和功率的变化observed.Conclusions：机制，使身体能够走上和下坡，特别是提高和降低质量中心，并防止滑倒，可以看出在下肢的动力学的改变。在下肢假肢的设计以及矫形和神经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，平衡和福尔斯。(c)2005爱思唯尔有限公司保留所有权利。
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 I I 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. (c) 2005 Elsevier Ltd. All rights reserved.