Abstract

The aim of this paper is to provide sound principles of electromyography (EMG) signal acquisition and processing in order to optimize signal quality and therefore lead to better interpretation of mechanical muscle output during sport medicine applications and rehabilitation. Some background information is provided on the source of the EMG signal, factors affecting its quality, recording techniques, signal processing, fidelity and reproducibility of the signal, and some applications in sport medicine and rehabilitation. The descriptions of EMG research applications in rehabilitation are not an exhaustive review of all major areas but only a few examples in the areas of signal reliability, muscle activation and timing, and muscle fatigue.

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