P 57 The influence of sports expertise on the extent of physiological mirror-EMG-activity in the upper and lower extremity

During unimanual motor tasks, muscle activity may not be restricted to the contracting muscle, but has also been reported to occur involuntarily in the contralateral resting limb in healthy subjects, referred to as physiological mirror electromyographic (MEMG) activity (Sehm et al., 2015). To date, however, it is unknown if the physiological form of MEMG can also be observed in lower extremities during the performance of unilateral isometric leg contractions. Furthermore it still remains elusive if and how MEMG is affected by long-term exercise training.

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