Compensatory movements of transradial prosthesis users during common tasks
Compensatory movements of transradial prosthesis users during common tasks
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DOI：
10.1016/j.clinbiomech.2008.05.008
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发表时间：
2008-11-01
影响因子：
1.8
通讯作者：
Dubey, Rajiv V.
中科院分区：
文献类型：
--
作者：
Carey, Stephanie L.;Highsmith, M. Jason;Dubey, Rajiv V.
背景。最近的研究记录了健康受试者在日常生活活动中上肢的运动。本研究的目的是调查经桡动脉假肢使用者执行任务期间上肢和躯干的代偿运动，并确定支撑是否模拟假肢的使用。方法。七名经桡动脉肌电假肢使用者和 10 名非截肢志愿者执行了四项常见任务。使用支撑来模拟非截肢受试者使用经桡动脉假体。根据光学运动分析数据计算盂肱（肩）关节、肘关节和躯干的运动范围。对无支撑、支撑和经桡动脉假体用户组之间的运动进行了统计比较。计算双边任务中受影响手臂和未受影响手臂之间的不对称程度。结果。肌电经桡动脉假肢用户根据任务的不同，对手腕和前臂运动的缺乏进行不同的补偿。打开门时会发生躯干弯曲的补偿运动。对于箱子举升任务，假肢使用者更多地依赖健全的手臂和躯干弯曲。当用杯子喝水时，使用假肢时盂肱关节的屈曲会减少，肘部的屈曲会增加。转动方向盘时，假肢使用者与非截肢者相似。解释。通过观察限制前臂和手腕运动引起的代偿运动，可以更好地理解经桡动脉假肢设计的问题。尽管支撑完整的受试者在大多数任务中表现出类似的补偿机制，但假肢使用者的补偿幅度更大。 (C) 2008 Elsevier Ltd. 保留所有权利。
Background. Recent studies have documented motions of the upper limbs of healthy subjects during activities of daily living. The aim of this study was to investigate compensatory motions of the upper extremity and torso during tasks for transradial prosthesis users and to determine if bracing simulates prosthesis use.Methods. Seven transradial myoelectric prosthesis users and 10 non-amputee volunteers performed four common tasks. Bracing was used to simulate the use of a transradial prosthesis by the non-amputee subjects. Range of motion of the glenohumeral (shoulder) joint, elbow joint and torso were calculated from optical motion analysis data. The motions between the non-braced, braced and transradial prosthesis user groups were statistically compared. Degree of asymmetry between the affected and unaffected arm was computed for the bilateral tasks.Findings. Myoelectric transradial prosthesis users compensate for lack of wrist and forearm movement differently depending on the task. Compensatory motion in torso bending occurs while opening a door. For the box lift task, prosthesis users rely more on the sound arm and torso bending. While drinking from a cup, decreasing flexion of the glenohumeral joint and increasing elbow flexion was shown while using a prosthesis. While turning a steering wheel, prosthesis users are similar to non-amputee subjects.Interpretation. By looking at the compensatory motions caused by limiting forearm and wrist movement, a greater understanding of the problems with transradial prosthetic design can be developed. Although bracing intact subjects showed similar mechanisms of compensation in most tasks, the magnitude of compensation was greater for prosthesis users. (C) 2008 Elsevier Ltd. All rights reserved.