Effects of Velocity on Electromyographic, Mechanomyographic, and Torque Responses to Repeated Eccentric Muscle Actions.

摘要: The purposes of this study were to examine the effects velocity repeated eccentric muscle actions on torque and neuromuscular responses during maximal isometric actions. Twelve resistance-trained men performed 30 repeated, maximal, eccentric, isokinetic at randomly ordered velocities 60, 120, or 180°·s-1 separate days. Maximal voluntary contractions (MVICs) before (pretest) after (posttest) each day. Eccentric peak (EIPT) values averages first 3 last repetitions During EIPT MVIC actions, electromyographic (EMG) mechanomyographic (MMG) amplitude (EMG AMP MMG AMP) mean power frequency MPF MPF) assessed. These results indicated that had no EIPT, EMG AMP, MPF, assessed but decreased AMP. however, torque, also increased affected responses, not any parameters. Furthermore, there are differences in for vs.