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Average traces of eight motor evoked potentials (MEPs) and eight cervicomedullary-evoked potentials (CMEPs) of the biceps brachii elicited during arm cycling at the two crank positions (6 and 12 o’clock) with a neutral handgrip (solid, black lines) and a pronated handgrip (dashed, gray lines) for a single, representative individual. Average traces are normalized to the average of three Mwaves elicited during the same, experimental conditions.
