Using swing resistance and assistance to improve gait symmetry in individuals post-stroke.
Using swing resistance and assistance to improve gait symmetry in individuals post-stroke.
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DOI：
10.1016/j.humov.2015.05.010
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发表时间：
2015-08
影响因子：
2.1
通讯作者：
Wu M
中科院分区：
文献类型：
--
作者：
Yen SC;Schmit BD;Wu M
在中风后个体中观察到的偏瘫步态的主要特征是空间和时间不对称，这可能增加能量消耗和福尔斯的风险。本研究的目的是检查摆动阻力/援助适用于受影响的腿步态对称性在个人中风后的影响。我们招募了10名患有慢性中风的受试者，他们在行走过程中与未受影响的腿相比，受影响的腿的步长较短。他们参加了两个测试会议的摆动阻力和摆动援助，分别。在适应期间，受试者抵消了由施加的摆动阻力引起的步长偏差，从而导致在适应后期间由步长对称性改善组成的后效。相反，受试者在适应期没有抵消挥杆辅助引起的步长偏差，在适应后阶段也没有产生后效。运动训练与摆动阻力适用于受影响的腿可以改善步长对称性，通过基于错误的学习。摆动辅助减少了步进期间步长的误差;然而，尚不清楚这种方法是否会改善步长对称性。这项研究的结果可能会被用来开发训练模式，以改善步态对称性的中风幸存者。
A major characteristic of hemiplegic gait observed in individuals post-stroke is spatial and temporal asymmetry, which may increase energy expenditure and the risk of falls. The purpose of this study was to examine the effects of swing resistance/assistance applied to the affected leg on gait symmetry in individuals post-stroke. We recruited 10 subjects with chronic stroke who demonstrated a shorter step length with their affected leg in comparison to the non-affected leg during walking. They participated in two test sessions for swing resistance and swing assistance, respectively. During the adaptation period, subjects counteracted the step length deviation caused by the applied swing resistance force, resulting in an aftereffect consisting of improved step length symmetry during the post-adaptation period. In contrast, subjects did not counteract step length deviation caused by swing assistance during adaptation period and produced no aftereffect during the post-adaptation period. Locomotor training with swing resistance applied to the affected leg may improve step length symmetry through error-based learning. Swing assistance reduces errors in step length during stepping; however, it is unclear whether this approach would improve step length symmetry. Results from this study may be used to develop training paradigms for improving gait symmetry of stroke survivors.