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. 2008 May 15;105(2):700–710. doi: 10.1152/japplphysiol.00170.2007

Fig. 3.

Fig. 3.

Illustration of various categories of challenges that arise in the decomposition of EMG signals: similar motor unit action potential (MUAP) shapes, changes in MUAP shape, large dynamic range in MUAP amplitudes, and superposition of MUAPs. MU, motor unit.