Medeiros, Leandro da Conceição and Oliveira Silva, Pedro Henrique and Soares Lopes, Victor Hugo and Filgueiras de Oliveira, Arthur and Bento Pereira, Eduardo and Nepomuceno, Erivelton (2019) Detecção de Fadiga Muscular Utilizando Modulação Variável de Fluxo de Bits e Correlação Cruzada de Sinais Eletromiográficos. In: SBAI 2019, 27-30 October 2019.

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Abstract

The surface electromyography (sEMG) analysis can provide information on muscle fatigue status by estimation of muscle fibre conduction velocity (MFCV), a measure of the travelling speed of motor unit action potentials in muscle tissue. This paper proposes a technique for MFCV estimation using cross-correlation methods and variable bitstream modulation. The technique displays an estimate based on a set of data generated by the gain variation modulation, providing an average estimate of the MFCV. The observed trend of MFCV decrease correlates with the fatigue state of the observed muscle. Finally, the values found were compared with information from the literature, validating the method and showing the advantages of using variable modulation. Resumo: A an´alise da eletromiografia de superf´ıcie (EMGs) pode fornecer informa¸c˜oes sobre o estado de fadiga muscular pela estima¸c˜ao da velocidade de condu¸c˜ao de fibras musculares (VCFM), sendo uma medida da velocidade de deslocamento dos potenciais de a¸c˜ao no tecido muscular. O presente artigo prop˜oe uma t´ecnica para estimativa da VCFM utilizando m´etodos de correla¸c˜ao cruzada e modula¸c˜ao vari´avel de fluxo de bits. A t´ecnica exibe uma estimativa baseada em um conjunto de dados gerados pela varia¸c˜ao do ganho de modula¸c˜ao, fornecendo uma estimativa m´edia da VCFM. A estimativa representa uma diminui¸c˜ao da VCFM correlacionada com o estado de fadiga do m´usculo observado. Por fim, os valores encontrados foram comparados com informa¸c˜oes da literatura, validando o m´etodo e mostrando as vantagens do uso da modula¸c˜ao vari´avel.

Item Type:	Conference or Workshop Item (Paper)
Keywords:	Cross-correlation; bitstream modulation; electromyography (EMG); muscle fibre conduction velocity (MFCV); muscle fatigue; Correla¸c˜ao cruzada; modula¸c˜ao em fluxo de bits; eletromiografia (EMG); velocidade de condu¸c˜ao das fibras musculares (VCFM); fadiga muscular;
Academic Unit:	Faculty of Science and Engineering > Electronic Engineering Faculty of Science and Engineering > Research Institutes > Hamilton Institute
Item ID:	16863
Identification Number:	https://doi.org/10.17648/sbai-2019-111265
Depositing User:	Erivelton Nepomuceno
Date Deposited:	17 Jan 2023 14:45
Refereed:	Yes
URI:
Use Licence:	This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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