Equilibrium and movement control strategies in trans-tibial amputees
Equilibrium and movement control strategies in trans-tibial amputees
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DOI：
10.1080/03093640008726533
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发表时间：
2000-08-01
影响因子：
1.5
通讯作者：
Massion, J
中科院分区：
文献类型：
--
作者：
Viton, JM;Mouchnino, L;Massion, J
本研究旨在确定经胫骨截肢者(TTA)的平衡和运动控制策略的变化与生物力学变化和传入流入的丧失有关。研究了创伤性TTA组和对照组从双足站立向单足站立转变过程中平衡和运动之间的协调性。在声音和假肢支持的情况下，TTA在很高比例的试验中都未能完成这项任务。在重量转移阶段的持续时间、初始压力中心(CP)移位的长度和肌电(EMG)模式方面，TTA组与对照组也有显著差异。尽管有自适应的姿势运动控制策略，但对于TTA来说，从两足姿势到单足姿势的转换仍然是一项困难的任务，无论是当支撑肢体是受影响的肢体，还是当健全的肢体是支撑肢体时。这项研究的结果被讨论关于康复计划和假体设计的经胫骨截肢。
This study was aimed at identifying changes in equilibrium and movement control strategies in trans-tibial amputees (TTA) related to both the biomechanical changes and the loss of afferent inflow. The coordinations between equilibrium and movement were studied in traumatical TTA and in controls during transition from bipedal to monopodal stance. TTA failed to perform the task in a high percentage of trials both when the sound and the prosthetic limb were supporting. Significant differences were also found between TTA and controls in the duration of the weight transfer phase, in the length of the initial centre of pressure (CP) displacement and in the electromyographic (EMG) patterns. Despite adaptive posturomotor control strategies, transition from bipedal to monopodal stance remains a difficult task to perform for TTA, both when the supporting limb is the affected one and when the sound one is. The results of this study are discussed with respect to the rehabilitation programme and the prosthesis design for transtibial amputees.