Myoelectric signal processing and applications to rehabilitation

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When a muscle contracts, an electrical signal can be measured on the skin surface. This myoelectric signal has been used for many years as a means of controlling the grasping function of an artificial arm. The research outlined in this proposal will define techniques to extract more information from the surface myoelectric signal. The additional information will then be used in a number of ways. For the myoelectric control application it will be used to develop more advanced control systems that are capable of controlling additional prosthetic limb functions such as wrist rotation, elbow flexion and multiple hand functions. A hybrid control system will be developed that uses this information and the information from force and position sensors within the socket of the artificial limb to allow an amputee to control the movement of these multiple artificial joints in a natural and coordinated manner.