Mechanomyographic amplitude is sensitive to load-dependent neuromuscular adaptations in response to resistance training

摘要: Jenkins, NDM, Miramonti, AA, Hill, EC, Smith, CM, Cochrane-Snyman, KC, Housh, TJ, and Cramer, JT. Mechanomyographic amplitude is sensitive to load-dependent neuromuscular adaptations in response to resistance training. J Strength Cond Res 35 (11): 3265–3269, 2021—We examined the sensitivity of the mechanomyographic amplitude (MMG RMS) and frequency (MMG MPF) vs. torque relationships to load-dependent neuromuscular adaptations in response to 6 weeks of higher-vs. lower-load resistance training. Twenty-five men (age= 22.8±4.6 years) were randomly assigned to either a high-(n= 13) or low-load (n= 12) training group and completed 6 weeks of leg extension resistance training at 80 or 30% 1RM. Before and after 3 and 6 weeks of training, mechanomyography signals were recorded during isometric contractions at target torques equal to 10–100% of the subjects' baseline maximal strength …