Simultaneous, Proportional, Multi-axis Prosthesis Control using Multichannel Surface EMG
Simultaneous, Proportional, Multi-axis Prosthesis Control using Multichannel Surface EMG
复制标题
DOI：
10.1109/iembs.2007.4353749
复制
发表时间：
2007-10
期刊：
影响因子：
--
通讯作者：
D. Yatsenko;D. McDonnall;K. Shane Guillory
中科院分区：
文献类型：
--
作者：
D. Yatsenko;D. McDonnall;K. Shane Guillory
大多数上肢假肢控制器只允许单独选择和控制肢体的单个关节。同时多关节控制的主要限制因素通常是可靠的独立控制信号的可用性，这些信号可以直观地使用。提出了一种基于肌电能量沿运动主矢量正交化的表面肌电信号提取方法。在残肢存在可独立控制的肌肉的情况下，该方法可用于提供对假肢系统的同步、多轴、比例控制。给出了两个完整受试者在等长和非等长条件下和一个横断指截肢受试者同时控制手腕旋转、手腕屈伸和手柄打开/关闭的初步结果。
Most upper limb prosthesis controllers only allow the individual selection and control of single joints of the limb. The main limiting factor for simultaneous multi-joint control is usually the availability of reliable independent control signals that can intuitively be used. In this paper, a novel method is presented for extraction of individual muscle source signals from surface EMG array recordings, based on EMG energy orthonormalization along principle movement vectors. In cases where independently-controllable muscles are present in residual limbs, this method can be used to provide simultaneous, multi-axis, proportional control of prosthetic systems. Initial results are presented for simultaneous control of wrist rotation, wrist flexion/extension, and grip open/close for two intact subjects under both isometric and non-isometric conditions and for one subject with transradial amputation.