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. 2023 Feb 16;17:1112853. doi: 10.3389/fnins.2023.1112853

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Copyright © 2023 Gorgey, Goldsmith, Alazzam and Trainer.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Supine rhythmic electromyography (EMG) activities of the left and right rectus femoris (RF) and medical gastrocnemius muscles initiated when the stimulation parameters were set at a frequency of 25 Hz, pulse duration of 250 μs and amplitude of the current that progressed from 5.0–7.0 mA after configuring the cathode at –0 and the anode at +3. The rhythmicity pattern resulted in periods of EMG bursts that followed by periods of relaxation in three out of the four muscle groups and was less obvious in the right rectus femoris muscle. The EMGs presented are rectified and bandpass filtered at 10–990 Hz. RF, rectus femoris; MG, medial gastrocnemius; mV, millivolts; mA, milliamps; sec, seconds.