compound muscle action potential


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compound muscle action potential (CMAP),

n a group of almost simultaneous action potentials from several muscle fibers in the same area usually evoked by stimulation of the supplying motor nerve and are recorded as one multipeaked summated action potential.
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Low amplitude sensory nerve action potential and multifocal compound muscle action potential and normal or minimally decreased velocity were reported in the previous studies with RA patients (14-16).