A computer game-based EMG biofeedback system for muscle rehabilitation

Abstract

The development and clinical evaluation of a computer game-based EMG biofeedback system is described, whose purpose is to enable or disable the playing of a computer game by a user, based on the intensity of muscle activity recorded from the muscle of interest. The game can be used in the development of increased muscle function or in the suppression of muscle spasticity. Biofeedback is provided as the system allows the subject to control game play using muscle contraction/relaxation. A built-in calibration mechanism caters for varying muscle sizes and strengths. Clinical evaluation of the biofeedback system, for muscular rehabilitation, has been carried out on 8 adult subjects with cerebral palsy over a four-week period.