Classification of Human Balance Recovery Strategies Through Kinematic Motor Synergy Analysis.
Summary
Human balance recovery utilizes motor synergy to adapt joint coordination under different pushing forces. This study reveals how switching postural coordination enhances balance robustness and strategy generation.
Area of Science:
- Biomechanics
- Human motor control
- Robotics
Background:
- Understanding human balance recovery is crucial, especially with redundant biomechanical systems.
- Motor synergy analysis is an established method for studying motion behavior and control commands.
Purpose of the Study:
- To analyze motor synergy for different control strategies in balance recovery.
- To investigate human multiple joint coordination during balance recovery under varying pushing forces.
- To understand the adaptive balance motion response patterns and the generation of balance strategies.
Main Methods:
- Proposed motor synergy analysis for different control strategies.
- Computed spatial synergy of joint angles using principal component analysis (PCA).
- Applied varying levels of pushing force to subjects' backs.
Main Results:
- Evaluated adaptive balance motion response patterns to different pushing force levels.
- Illustrated improved balance robustness through the switch of joint coordination.
- Analyzed the switch of postural coordination over multiple joints.
Conclusions:
- Motor synergy analysis provides insights into human balance recovery mechanisms.
- Switching joint coordination is a key strategy for enhancing balance robustness.
- This study contributes to understanding the generation of human balance strategies.
