Protocols Comparation for Verification of Muscular Fadigue by superface Electromyography

Protocols Comparation for Verification of Muscular Fadigue by superface Electromyography

Authors

  • Sarah Regina Dias da Silva Laboratório de Biodinâmica da UNESP – Rio Claro, SP
  • Mauro Gonçalves Unesp Rio Claro, SP

DOI:

https://doi.org/10.5016/1171

Keywords:

eletromiografia, fadiga, comparação de protocolos, contração isométrica.

Abstract

The objective of the present study was to analyze the process of muscular fatigue through the electromyographic signal of the vastus lateralis muscle (VL) during two protocols (exhaustion and 1 minute) in the isometric exercise of the knee extension. The electromyographic signals (RMS) of dominant lower limb VL muscle of the 9 female were captured with sample frequency of 1000Hz. Data were acquired through surface electrodes connected to a biological signals acquisition module, by A/D interface and specific software. The obtained results, after the accomplishment of the linear regression between RMS and the number of collections, showed a predominance of positive correlations in both protocols, corresponding to the development of the muscular fatigue. However, the intensity and the significant level of the correlations presented better results in the exhaustion protocol. It was concluded that in the 1 minute protocol loads ≥30% of the maximum load should be used.

Author Biographies

Sarah Regina Dias da Silva, Laboratório de Biodinâmica da UNESP – Rio Claro, SP

Bacharel em Educação Física pela UNESP de Rio Claro, concluiu o mestrado e o doutorado em Ciências da Motricidade - Biodinâmica da Motricidade Humana pela UNESP - Rio Claro. Atua na área da Educação Física, com publicações em periódicos especializados e em anais de eventos. Membro da Sociedade Brasileira de Biomecânica. http://lattes.cnpq.br/5392500937172847

Mauro Gonçalves, Unesp Rio Claro, SP

professor Livre Docente da Universidade Estadual Paulista Júlio de Mesquita Filho - UNESP, responsável pelas disciplinas de Cinesiologia e Biomecânica; está vinculado ao Programa de Pós Graduação em Ciências da Motricidade; é Coordenador do Laboratório de Biomecânica da UNESP Rio Claro no qual realiza suas pesquisas sobre Análise do Movimento Humano com ênfase na ação muscular e o processo de fadiga por meio da eletromiografia. http://lattes.cnpq.br/3023304896722902

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Published

2008-05-06

Issue

V. 9, N. 1 (2003)

Section

Original Articles

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