Effects of Endurance Cycling on Mechanomyographic Median Power Frequency of the Vastus Lateralis

This study examined the effects of cycling training on mechanomyographic median power frequency (MMGMDF)–torque relationships vastus lateralis (VL). Ten males (Age ± SD; 20.20 1.87 years) and 14 females (21.93 5.33 performed isometric trapezoidal muscle actions with knee extensors at 40% maximal voluntary contraction (MVC) before (PRE) following 10 weeks same absolute submaximal torque as pre-training (POSTABS). MMGMDF–torque (increasing decreasing segment) were log-transformed b terms (slopes) calculated. MMGMDF was averaged during steady torque. For POSTABS, for (0.133 0.190) greater than (−0.083 0.200; p = 0.013) compared to PRE (0.008 0.161; 0.036). At PRE, linearly increasing-muscle action (0.123 0.192) decreasing-muscle (−0.061 0.188; < 0.001), whereas no differences existed between POSTABS (p > 0.05). In conclusion, resulted in different motor unit (MU) control strategies sexes altered MU VL a moderate-intensity contraction.