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This article is the first in a series that summarizes the essential anatomy and physiology of the body systems that are trained in biofeedback and neurofeedback. This article examines the skeletal muscle system, the types of skeletal muscle fibers, motor units, muscle action potentials, the surface electromyographic signal, muscle contraction, sensory-motor integration, and practical recommendations for beginning biofeedback professionals.
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Shaffer et al. (2010) studied this question.
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