Gait initiation in lower limb amputees
Gait initiation in lower limb amputees
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DOI：
10.1016/j.gaitpost.2007.05.013
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发表时间：
2008-04-01
期刊：
影响因子：
2.4
通讯作者：
Postema, K.
中科院分区：
文献类型：
--
作者：
Vrieling, A. H.;van Keeken, H. G.;Postema, K.
目的：研究下肢截肢者在步态启动过程中的功能限制和调整策略。设计：观察性队列研究。设置：大学医学中心。参与者：单侧经股动脉或经胫骨截肢的截肢者，以及身体健全的受试者。主要结果测量：主导肢体偏好，时间变量，地面反作用力和压力中心移位。结果：截肢者表现出减少峰值前地面反作用力，一个较小的或不存在的后方中心的压力转移，和较低的步态起始速度。截肢者的主要调整策略是更多的肢体负载的非患肢，延长期间的推进力生产的非患肢，并启动步态，优选与假肢limb.Conclusion：由于一个完整的踝关节和肌肉组织是非常重要的步态启动，功能的限制和调整策略，在transfemoral和transtibial截肢者是相似的。改善假肢踝关节的性能和启动步态与假肢可能会促进截肢者的步态启动过程。(C)2007 Elsevier B.V.保留所有权利。
Objective: To study limitations in function and adjustment strategies in lower limb amputees during gait initiation.Design: Observational cohort study.Setting: University Medical Center.Participants: Amputees with a unilateral transfemoral or transtibial amputation, and able-bodied subjects.Main outcome measures: Leading limb preference, temporal variables, ground reaction forces, and centre of pressure shift.Results: Amputees demonstrated a decrease in peak anterior ground reaction force, a smaller or absent posterior centre of pressure shift, and a lower gait initiation velocity. The main adjustments strategies in amputees were more limb-loading on the non-affected limb, prolonging the period of propulsive force production in the non-affected limb and initiating gait preferably with the prosthetic limb.Conclusion: Since an intact ankle joint and musculature is of major importance in gait initiation, functional limitations and adjustment strategies in transfemoral and transtibial amputees were similar. Improving prosthetic ankle properties and initiating gait with the prosthetic limb may facilitate the gait initiation process in amputees. (C) 2007 Elsevier B.V. All rights reserved.