Electromyographic Signal Dynamic Behavior in Neuropathies - Spectral Parameters Evaluation and Classification

Maria Marta Santos, Ana Luisa Gomes, Hugo Gamboa, Mamede Carvalho, Susana Pinto, Carla Quintão

2015

Abstract

Amyotrophic Lateral Sclerosis (ALS) is a neurodegenerative disease characterized by motor neurons degeneration, which reduces muscular force, being very difficult to diagnose. Mathematical methods, such as Coherence, Phase Locking Factor (PLF), Fractal Dimension (FD), Lempel-Ziv (LZ) techniques, Detrended Fluctuation Analysis (DFA) and Multiscale Entropy (MSE) are used to analyze the surface electromiographic signal’s chaotic behavior and evaluate different muscle groups’ synchronization. Surface electromiographic signal acquisitions were performed in upper limb muscles, being the analysis executed for instants of contraction recorded from patients and control groups. Results from LZ, DFA and MSE analysis present capability to distinguish between the patient and the control groups, whereas coherence, PLF and FD algorithms present results very similar for both groups. LZ, DFA and MSE algorithms appear then to be a good measure of corticospinal pathways integrity. A classification algorithm was applied to the results in combination with extracted features from the surface electromiographic signal, with an accuracy percentage higher than 70% for 118 combinations for at least one classifier. The classification results demonstrate capability to distinguish both groups. These results can demonstrate a major importance in the disease diagnose, once surface electromyography (sEMG) may be used as an auxiliary diagnose method.

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Paper Citation


in Harvard Style

Marta Santos M., Luisa Gomes A., Gamboa H., Carvalho M., Pinto S. and Quintão C. (2015). Electromyographic Signal Dynamic Behavior in Neuropathies - Spectral Parameters Evaluation and Classification . In Proceedings of the International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2015) ISBN 978-989-758-069-7, pages 227-234. DOI: 10.5220/0005215602270234


in Bibtex Style

@conference{biosignals15,
author={Maria Marta Santos and Ana Luisa Gomes and Hugo Gamboa and Mamede Carvalho and Susana Pinto and Carla Quintão},
title={Electromyographic Signal Dynamic Behavior in Neuropathies - Spectral Parameters Evaluation and Classification},
booktitle={Proceedings of the International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2015)},
year={2015},
pages={227-234},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0005215602270234},
isbn={978-989-758-069-7},
}


in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2015)
TI - Electromyographic Signal Dynamic Behavior in Neuropathies - Spectral Parameters Evaluation and Classification
SN - 978-989-758-069-7
AU - Marta Santos M.
AU - Luisa Gomes A.
AU - Gamboa H.
AU - Carvalho M.
AU - Pinto S.
AU - Quintão C.
PY - 2015
SP - 227
EP - 234
DO - 10.5220/0005215602270234