多自由度假肢可以用皮肤表面电极记录的肌电信号来控制。假肢的各种控制功能可以通过识别不同的肌肉收缩来实现。这种控制方法自第二次世界大战以来就已开始采用。为了识别不同肌肉的收缩,使用了包括单电极和多电撅方式在内的各种电极设置方式。在临床应用中,考虑到电极与皮肤接触的可靠性和电极位置的准确性,一般不希望使用多电极方式。因此, Multi-degree freedom limbs can be controlled by the EMG signal recorded on the skin surface electrode. Various control functions of the prosthesis can be achieved by identifying different muscle contractions. This method of control has been adopted since the Second World War. In order to recognize the contraction of different muscles, a variety of electrode configurations including a single electrode and a multi-electrode method are used. In clinical applications, in view of the reliability of the electrode contact with the skin and the accuracy of the electrode position, it is generally not desirable to use the multi-electrode method. therefore,