Training devices of muscle strength for persons with deteriorated physical fitness simulating muscular viscoelastic properties

肌肉具有动态特性，随着外力的变化而改变粘弹性。研制了一种模拟肌肉粘弹性特性的机械执行器。利用产生外部弹性载荷的致动器进行了跟踪实验，以估计博物馆的弹性性能。利用小波变换对跟踪误差角进行了分析。根据频率变化趋势和肌肉动力学模型估计肌肉的弹性特性。肌肉动力学模型测得的肌肉弹性常数与生理实验测得的值相近。其次，对执行器进行了改装，使其产生等粘性载荷。比较等张收缩、等速收缩和等粘收缩时NE肌的力学性能。结果表明，等粘性收缩是一种安全有效的训练方法，适用于残障患者和老年人。

The muscles have dynamic properties changing the viscoelasticity in response to an exerted force. A mechanical actuator simulating muscular viscoelastic properties was developed. A tracking experiment was conducted using the actuator generating an external elastic load to estimate museular elastic properties. ne tracking error angles were analyzed by the wavelet transform. The muscular elastic properties were estimated from the frequency trends and the musclodynamic model. The musclodynamic model indicated the muscular elastic constant similar to the value determined in the physiological experiment. Next, the actuator was modified lo produce isoviscous load. ne muscle mechanical performance during isotonic, isokinetic and isoviscous contraction was compared. It was found that the isoviscous contraction is a useful and safe way for training in disabled patients and aged people.