Mechanical compensation for weak triceps in C5/C6 tetraplegia
Mechanical compensation for weak triceps in C5/C6 tetraplegia
复制标题
C5/C6 四肢瘫痪三头肌无力的机械补偿
DOI：
10.1109/86.242420
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发表时间：
1993
期刊：
影响因子：
--
通讯作者：
M. Wierzbicka
中科院分区：
文献类型：
--
作者：
A. Wiegner;M. Wierzbicka
C5/C6 颈部脊髓损伤的人通常二头肌功能保存相对较好，但对三头肌的自主控制很少或没有。作者之前的工作表明，这会导致肘部运动的速度和准确性方面的缺陷。作者的目标是设计一种戴在肘部的简单机械矫形器，以纠正这些缺陷并提高伸手能力。在这项研究中，作者通过对肘关节运动进行计算机模拟，并对 C5/C6 四肢瘫痪受试者进行实验，指定了该矫形器所需的机械组件，其中电子模拟机械弹簧和阻尼元件辅助其三头肌功能。结果表明，提供由恒扭矩弹簧和粘性阻尼元件组成的肘部矫形器应该能够最好地改善三头肌无力的四肢瘫痪受试者的手臂功能。 >
Persons with spinal cord injury at the C5/C6 cervical level typically have relatively well preserved biceps function, but minimal or no voluntary control of triceps. The authors' previous work demonstrated that this results in deficiencies in speed and accuracy of elbow movements. The authors' goal is to design a simple mechanical orthosis, worn at the elbow, to correct these deficiencies and also to improve reaching capacity. In this study, the authors have specified the mechanical components necessary for this orthosis by performing computer simulations of movements at the elbow joint and experiments with C5/C6 tetraplegic subjects in which their triceps function was assisted with electronically emulated mechanical springs and damping elements. Results indicate that provision of an elbow orthosis consisting of a constant torque spring and a viscous damping element should obtain the best improvement in arm function of tetraplegic subjects with weak triceps. >