文章基本信息

标题：Reliability and variability of the amplitude and frequency parameters of the longuissimus and multifidus muscles electromyographic signal during maximal isometric voluntary contractions
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作者：Adalgiso Coscrato Cardozo ; Mauro Gonçalves
期刊名称：Motriz. Journal of Physical Education. UNESP
印刷版ISSN：1980-6574
出版年度：2009
卷号：14
期号：4
页码：429-439
语种：Portuguese
出版社：UNESP - São Paulo State University
摘要：The aim of the present study was to analyze the reliability and the variability of the amplitude and frequency of the electromyographic signal of the longuissimus toracis and multifidus muscles of the right and left sides during maximum isometric voluntary contractions. Twenty male subjects have participated of this study. To the EMG signal acquisition it were used bipolares passives electrodes placed over the longissimus toracis and multifidus muscles. The analysis shows high reliability values to the load cell (0.96), and to the spectral variables to the longissimus toracis muscle (0.90-0.97). the multifidus muscles have shown reliabilities values between fair to high (0.70-0.95). The methodological design presented to the understanding of the longissimus toracis and multifidus muscles resistance have shown reliable, due high values of the reliabilities to the variables.
关键词：Biomecânica;Eletromiografia;Coluna;Reprodutibilidade.