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Simulation linking electro myographic power spectra to recruitment and rate coding



Simulation linking electro myographic power spectra to recruitment and rate coding



Computers in Biology & Medicine 9(3): 213-222



For muscles, a graded increase in motor unit size, with the number of fibers in the motor units forming an arithmetic progression, leads to a model consistent with experimental findings. This model was combined with electrical signal characteristics of activated muscle fibers, and the signal attenuation due to the spread of the electrical signal to bipolar surface electrodes. For the biceps brachii this electromechanical model links motor unit recruitment, rate coding and frequency shifts in the surface EMG power spectra. Motor unit degeneration results in an abnormally large high frequency EMG component.

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Accession: 006418328

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