Yang N, An Q, Yamakawa H, Tamura Y, Yamashita A, Takahashi K, Kinomoto M, Yamasaki H, Itkonen M, Alnajjar F S, Shimoda S, Asama H, Hattori N, Miyai I
IEEE Int Conf Rehabil Robot. 2017 Jul;2017:19-24. doi: 10.1109/ICORR.2017.8009215.
Standing-up motion is an important daily activity. It has been known that elderly and post-stroke patients have difficulty in performing standing-up motion. The standing-up motion is retrained by therapists to maximize independence of the elderly and post-stroke patients, but it is not clear how the elderly and post-stroke patients control their redundant muscles to achieve standing-up motion. This study employed the concept of muscle synergy to analyze how healthy young adults, healthy elderly people and post-stroke patients control their muscles. Experimental result verified that four muscle synergies can represent human standing-up motion. In addition, it indicated that the post-stroke patients shift the weights of muscle synergies to finish standing-up motion comparing to healthy subjects. Moreover, different muscle synergy structures were associated with the CoM and joint kinematics.
起立动作是一项重要的日常活动。众所周知，老年人和中风后患者在进行起立动作时存在困难。治疗师会对起立动作进行再训练，以最大程度地提高老年人和中风后患者的独立性，但目前尚不清楚老年人和中风后患者如何控制其冗余肌肉来完成起立动作。本研究采用肌肉协同的概念来分析健康年轻人、健康老年人和中风后患者如何控制他们的肌肉。实验结果证实，四种肌肉协同作用可以代表人体的起立动作。此外，研究表明，与健康受试者相比，中风后患者会转移肌肉协同作用的权重来完成起立动作。而且，不同的肌肉协同结构与质心和关节运动学相关。
