EMG changes in trapezius muscle under low-level long-duration loads

Author

Li, Qun ; Beebe, David J. ; Li, Jinghong

Author_Institution

Dept. of Biomed. Eng., Louisiana Tech. Univ., Ruston, LA, USA

Volume

4

fYear

1996

fDate

31 Oct-3 Nov 1996

Firstpage

1456

Abstract

In this study, EMG changes from trapezius muscle during long-duration contractions at very low load levels were explored. Two endurance tests were performed on four healthy subjects. One was a 10-15 minute arm-holding test with 0-kg load. The other was an 1.5-hour writing test. Median power frequency (MPF) and root mean square (RMS) amplitude of the EMG were calculated. Linear regression analysis was performed. Small but significant decreases in MPF and increases in RMS amplitudes (p<0.05) were found in most subjects for both tests

Keywords

biomechanics; electromyography; 1.5 h; 10 to 15 min; EMG changes; arm-holding test; endurance tests; healthy subjects; linear regression analysis; long-duration contractions; low-level long-duration loads; median power frequency; trapezius muscle; very low load levels; writing test; Biomedical engineering; Electromyography; Fatigue; Frequency; Linear regression; Muscles; Performance analysis; Performance evaluation; Root mean square; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1996. Bridging Disciplines for Biomedicine. Proceedings of the 18th Annual International Conference of the IEEE

Conference_Location

Amsterdam

Print_ISBN

0-7803-3811-1

Type

conf

DOI

10.1109/IEMBS.1996.647502

Filename

647502