FNS肢体运动疲劳特性的实验研究

研究了功能电刺激作用下的人体神经肌肉的疲劳特性和生物反应，初步确定了适合于人体神经肌肉电刺激脉冲信号的基本特征，以正常男性成人的曲肘运动（右手）为研究对象，将表面电极置于右手肱二头肌肌腹处，在肘关系（右手）处安装一个微型角位移传感器，通过多功能神经肌肉电刺激肢体运动测控仪器，获取曲肘运动时的肘关节角位移变化曲线，结果表明，在任何一种刺激模式作用下，曲肘运动均呈现严重非线性时变特性；缓慢连续变化的刺激脉冲能有效地缓解肱二头肌的疲劳程度，最佳的功能电刺激脉冲频率为30Hz-50Hz。

Experimental Studies on Muscle Fatigue of Human LimbMotion with FNS

The basic characteristic of the functional neuromuscular stimulation signals suitable to body is preliminarily determined after the fatigue performance of the biceps, and the physiological reaction to stimulation is investigated using many continuous stimulation signal patterns. The flexion motion of the elbow joint (right hand) of a healthy man was taken as our research objective. The surface electrodes were connected to the biceps and a micro angle sensor was mounted on the elbow joint (right hand). The curves of angular displacement for the elbow joint motion were obtained by using functional neuromuscular stimulation (FNS) limbs motion measurement instruments. The results demonstrate that the biceps are characterized by the non linear and time variant no matter what the stimulation patterns are, that continuous slow stimulation signals can reduce the muscle fatigue of the biceps, and that the stimulation frequencies ranging from 30 Hz to 50 Hz are applicable to the neuromuscular system.