Identification of Femoral-Acetabular Symptoms using sEMG Signals during Dynamic Contraction

Zahra Karimi Tabar, Chris Joslin, Mario Lamontagne, Giulia Mantovani

Abstract

This paper focuses on development of an algorithm that automatically differentiates a Femoro-Acetabular Impingement (FAI) patient from a healthy control person by comparing their surface electromyography (sEMG) signal recorded from Gluteus Maximus (GMax), Tensor Fasciae Latae (TFL), and Rectus Femoris (RF) muscles in the hip area. A discrete wavelet transform (DWT) method was used to analyse sEMG signals by thirty-eight different wavelet functions (WFs) with 5 decomposition levels of dynamic contractions during the three phases (descending, stationary, and ascending) of a squat task. The Bior3.9 WF was selected as it provided higher amount of energy for most of the subjects and then the wavelet power spectrum was computed for healthy control and FAI groups. The results show that the RF muscle is more active in the ascending phase than the descending phase for FAI subjects, whereas it is more active in the descending phase for healthy control. An independent sample t-test was used to check the activities of muscle in both groups. The results demonstrate no significant difference for GMax (p=0.7477) and TFL (p=0.4997) muscles, while there is a significant difference for RF muscle (p=0.0670).

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Paper Citation


in Harvard Style

Karimi Tabar Z., Joslin C., Lamontagne M. and Mantovani G. (2017). Identification of Femoral-Acetabular Symptoms using sEMG Signals during Dynamic Contraction . In Proceedings of the 10th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 4: BIOSIGNALS, (BIOSTEC 2017) ISBN 978-989-758-212-7, pages 214-222. DOI: 10.5220/0006173802140222


in Bibtex Style

@conference{biosignals17,
author={Zahra Karimi Tabar and Chris Joslin and Mario Lamontagne and Giulia Mantovani},
title={Identification of Femoral-Acetabular Symptoms using sEMG Signals during Dynamic Contraction},
booktitle={Proceedings of the 10th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 4: BIOSIGNALS, (BIOSTEC 2017)},
year={2017},
pages={214-222},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006173802140222},
isbn={978-989-758-212-7},
}


in EndNote Style

TY - CONF
JO - Proceedings of the 10th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 4: BIOSIGNALS, (BIOSTEC 2017)
TI - Identification of Femoral-Acetabular Symptoms using sEMG Signals during Dynamic Contraction
SN - 978-989-758-212-7
AU - Karimi Tabar Z.
AU - Joslin C.
AU - Lamontagne M.
AU - Mantovani G.
PY - 2017
SP - 214
EP - 222
DO - 10.5220/0006173802140222