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Sex Differences in Motor Unit Discharge Rates at Maximal and Submaximal Levels of Force Output
2020
Applied Physiology, Nutrition and Metabolism
This study evaluated potential sex differences in motor unit (MU) behaviour at maximal and submaximal force outputs. Forty-eight, 24 females and 24 males, performed isometric dorsiflexion contractions at 20, 40, 60, 80, and 100% of a maximum voluntary contraction (MVC). Tibialis anterior electromyography was recorded both by surface and intramuscular electrodes. Compared to males, females had a greater MU discharge rate (MUDR) averaged across all submaximal intensities (Δ 0.45 pps, 2.56%).
doi:10.1139/apnm-2019-0958
pmid:32338038
fatcat:guar3mepqbe3vdn7gpsbhelrfa