Dataset for lower limb muscle fatigability is not associated with changes in movement strategies for balance control in the upright stance

This dataset contains posturography and surface electromyography signals to investigate whether the acute fatigability of lower limb muscles affects the movement strategies for controlling postural stability during upright standing by analyzing the spatial patterns of COP position. It is hypothesized that body sway increases with muscle fatigability, but movement strategies remain the same, marked by a larger COP area and velocity but similar spatial patterns of three-dimensional statokinesigrams.本数据集收录姿势描记法（posturography）与表面肌电图（surface electromyography）信号，旨在通过分析中心压力（Center of Pressure, COP）位置的空间分布模式，探究下肢肌肉急性疲劳性是否会影响直立站立时控制姿势稳定性的运动策略。本研究提出如下假设：随肌肉疲劳性升高，身体摆动幅度将增大，但运动策略保持不变，具体表现为COP面积与速度均增大，而三维稳态姿势描记图（statokinesigrams）的空间分布模式仍保持一致。