Synergic pattern analysis of upper limb grasping movements.
- Author:
Yiyong YANG
1
;
Rencheng WANG
;
Zhixiu HAO
;
Dewen JIN
;
Wei XU
;
Han ZHANG
Author Information
1. School of Engineering, China University of Geosiences (Beijing), Beijing 100083, China.
- Publication Type:Journal Article
- MeSH:
Adult;
Electromyography;
Hand;
physiology;
Hand Strength;
physiology;
Humans;
Male;
Models, Biological;
Range of Motion, Articular;
physiology;
Upper Extremity;
physiology
- From:
Journal of Biomedical Engineering
2005;22(5):910-913
- CountryChina
- Language:Chinese
-
Abstract:
In order to discuss the evaluation method of human upper limb movements, the patterns of movement coordination during healthy people prehension have been researched. Eight subjects were asked to perform different reaching-grasping and drinking water from the cup tasks with different indices of difficulty, and the arm movement trajectories and the main muscles group electromyography (EMG) data were collected. To explore the prehension control mechanism, a comparison has been made between the solution of the theoretic calculation and the experimental data. The results show that the topological invariance was observed in the trajectories of different task performance, and the linear relationships between joints covariation were exhibited. Moreover, the different muscles were controlled and combined into units of synergistic muscular group necessary to reach and grasp the goal.
