Comparison of the activities of the deep trunk muscles measured using intramuscular and surface electromyography

Yu Okubo*, Koji Kaneoka, Atsushi Imai, Itsuo Shiina, Masaki Tatsumura, Shigeki Izumi, Shumpei Miyakawa

*この研究の対応する著者

研究成果: Article査読

17 被引用数 (Scopus)

抄録

Surface electromyography (EMG) has been used to estimate deep trunk muscle activity. However, it remains unknown whether surface EMG provides an accurate estimation of this activity. The purposes of this study were to compare surface and intramuscular EMG activity measurements and investigate the efficacy of surface EMG measurement for the transversus abdominis (TrA) and the multifidus (MF) muscles. Eight healthy men participated in the study. TrA and MF activities were simultaneously measured by both intramuscular and surface EMG during isometric trunk exercises. Spearman correlation coefficients for the relationship between the two activity measurements for the right TrA, left TrA, right MF, and left MF were 0.55, 0.36, 0.67, and 0.79, respectively. For the TrA, BlandAltman plots revealed that mean differences between measurements obtained by intramuscular EMG and surface EMG were not close to zero, with a systematic bias toward higher surface EMG values. In conclusion, surface and intramuscular EMG activity measurements were strongly correlated for MF muscles, but poorly correlated for TrA muscles.

本文言語English
ページ(範囲)611-620
ページ数10
ジャーナルJournal of Mechanics in Medicine and Biology
10
4
DOI
出版ステータスPublished - 2010 12月

ASJC Scopus subject areas

  • 生体医工学

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