Fatigue-induced continuous changes in muscle pennation angle during isometric contraction

Jun Shi; Jing Yi Guo; Yong Jin Zhou; Yongping Zheng

doi:10.1109/ICBBE.2010.5515659

Fatigue-induced continuous changes in muscle pennation angle during isometric contraction

Jun Shi, Jing Yi Guo, Yong Jin Zhou, Yongping Zheng

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

2 Citations (Scopus)

Abstract

Muscle fatigue is an exercise-induced reduction in the maximal capacity of muscle to produce force or power output. The continuous changes of brachialis pennation angles during the fatiguing isometric contraction was investigated in this study. The muscle torque, surface electromyography (SEMG) and ultrasound image of brachialis were continuously recorded during the process of isometric contraction. The mean brachialis pennation angles of four subjects increased from 19.75 ± 2.57° of pre-fatigue to 23.10 ± 2.85° of post-fatigue. The results demonstrated that the muscle fatigue would result in the dramatic increase of pennation angle during the submaximal sustained isometric contraction.

Original language	English
Title of host publication	2010 4th International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2010
DOIs	https://doi.org/10.1109/ICBBE.2010.5515659
Publication status	Published - 6 Sep 2010
Event	4th International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2010 - Chengdu, China Duration: 18 Jun 2010 → 20 Jun 2010

Conference

Conference	4th International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2010
Country	China
City	Chengdu
Period	18/06/10 → 20/06/10

Keywords

Isometric contraction
Muscle fatigue
Pennation angle
Ultrasound

ASJC Scopus subject areas

Biomedical Engineering
Health Informatics

More information

10.1109/ICBBE.2010.5515659

Cite this

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title = "Fatigue-induced continuous changes in muscle pennation angle during isometric contraction",

abstract = "Muscle fatigue is an exercise-induced reduction in the maximal capacity of muscle to produce force or power output. The continuous changes of brachialis pennation angles during the fatiguing isometric contraction was investigated in this study. The muscle torque, surface electromyography (SEMG) and ultrasound image of brachialis were continuously recorded during the process of isometric contraction. The mean brachialis pennation angles of four subjects increased from 19.75 ± 2.57° of pre-fatigue to 23.10 ± 2.85° of post-fatigue. The results demonstrated that the muscle fatigue would result in the dramatic increase of pennation angle during the submaximal sustained isometric contraction.",

keywords = "Isometric contraction, Muscle fatigue, Pennation angle, Ultrasound",

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Shi, J, Guo, JY, Zhou, YJ & Zheng, Y 2010, Fatigue-induced continuous changes in muscle pennation angle during isometric contraction. in 2010 4th International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2010., 5515659, 4th International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2010, Chengdu, China, 18/06/10. https://doi.org/10.1109/ICBBE.2010.5515659

Fatigue-induced continuous changes in muscle pennation angle during isometric contraction. / Shi, Jun; Guo, Jing Yi; Zhou, Yong Jin; Zheng, Yongping.

2010 4th International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2010. 2010. 5515659.

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

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Y1 - 2010/9/6

N2 - Muscle fatigue is an exercise-induced reduction in the maximal capacity of muscle to produce force or power output. The continuous changes of brachialis pennation angles during the fatiguing isometric contraction was investigated in this study. The muscle torque, surface electromyography (SEMG) and ultrasound image of brachialis were continuously recorded during the process of isometric contraction. The mean brachialis pennation angles of four subjects increased from 19.75 ± 2.57° of pre-fatigue to 23.10 ± 2.85° of post-fatigue. The results demonstrated that the muscle fatigue would result in the dramatic increase of pennation angle during the submaximal sustained isometric contraction.

AB - Muscle fatigue is an exercise-induced reduction in the maximal capacity of muscle to produce force or power output. The continuous changes of brachialis pennation angles during the fatiguing isometric contraction was investigated in this study. The muscle torque, surface electromyography (SEMG) and ultrasound image of brachialis were continuously recorded during the process of isometric contraction. The mean brachialis pennation angles of four subjects increased from 19.75 ± 2.57° of pre-fatigue to 23.10 ± 2.85° of post-fatigue. The results demonstrated that the muscle fatigue would result in the dramatic increase of pennation angle during the submaximal sustained isometric contraction.

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