文章基本信息

标题：Electromechanical Delay from Mechanomyography in Long-Term Strength Trained Men
本地全文：下载
作者：Sérgio Luiz Ferreira Andrade ; Sérgio Luiz Ferreira Andrade ; Gabriel Hunzicker Skiba 等
期刊名称：Journal of exercise physiology online
印刷版ISSN：1097-9751
出版年度：2016
卷号：19
期号：3
页码：110-119
语种：English
出版社：American Society of Exercise Physiologists
摘要：Andrade SF, Krueger E, Hunzicker G, Rodacki AF. Electromechanical Delay from Mechanomyography in Long-Term Strength Trained Men. JEPonline 2016;19 (3):110-119. The purpose of this study was to compare the electromechanical delay (EMD) between long-term strength trained and untrained subjects using the mechanomyographic (MMG) response of electrically evoked contractions. Twenty-two men (age 24.7 ± 3.1, body mass 68 ± 14.16 kg, height 1.73 ± 0.06 m) were assigned to a long-term trained group (TRE) and a nontrained (NOT) group. The tibial nerve was stimulated with eight progressive pulses to evoke mechanical responses in the soleus muscle. The onset of the mechanical activity was recorded from accelerometry for EMD calculations. No significant differences (P>0.05) were found between TRE and NOT for Δt EMG-MMG (14.10 ± 6.65 ms and 14.15 ± 6.08 ms), Δt Stim-MMG (25.58 ± 7.0 ms and 24.70 ± 6.64 ms), Stim-MMGNORM (2.24 ± 0.57 a.u. and 2.36 ± 0.56 a.u.), and MMGPEAK (10.75 ± 9.87 mG and 17.30 ± 18.98 mG). The results suggest that the delay of the mechanical response of the soleus may not be sensitive to long-term strength training.
关键词：Electromechanical Delay;Mechanomyography;Electromyography;Strength Training