两关节臂运动中上肢肌肉恢复的方法学考虑

T. Miyoshi, Yoshiyuki Takahashi, Hokyo Lee, M. Yamaguchi, T. Komeda
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引用次数: 0

摘要

我们研究了在双关节手臂运动中确定的肌肉激活水平或模式。12名受试者被指示在水平面上移动他们的右手腕(主手腕)。记录肱桡肌、肱二头肌和肱三头肌的表面肌电活动。肌肉激活水平在三维图中被证明是肘关节和肩部扭矩的函数,并被表示为特征平面和动态优先方向(PD)。双关节肌PD适合其解剖和功能作用;然而,单关节肱桡肌的强度受肩扭的影响。这些结果表明,双关节肌对产生运动学要求和/或控制终点运动做出了主要贡献。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Methodological consideration for the recruitment of upper limb muscles during two joint arm movements
We investigated muscle activation levels or patterns determined during two-joint arm movements. Twelve subjects were instructed to move their right (dominant) wrists in a horizontal plane. Surface electromyographic activities were recorded from the brachioradialis, biceps brachii, and triceps brachii. The muscle activation level was demonstrated as a function of both the elbow and shoulder torque in a 3-dimensional plot and was represented as an eigen plane and dynamic preferred direction (PD). The PD of the bi-articular muscles was suitable for its anatomical and functional roles; however, that of the mono-articular brachioradialis muscle was affected by the shoulder torque. These results suggested that the bi-articular muscle makes the main contribution toward the generation of the kinematic requirement and/or control of the endpoint movement.
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