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Evaluation of muscle fatigue based on surface electromyography and subjective assessment

  • China North Vehicle Research Institute

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this paper, an assessment model for muscle fatigue was constructed with mean fatigue energy and subjective feeling of fatigue degree for the entire process of the experiment. The model which combined objective and subject data will be valuable for improving work efficiency and for monitoring muscle fatigue. To investigate the relationship between surface electromyography and subjective assessment of muscle fatigue, twenty young male volunteers participated in the experiment of pistol holding and aiming. sEMG of the anterior deltoid was recorded during the entire process, while fatigue assessments (Borg scale) were collected every 30s. We divided the signal into several parts and then octave band method was used to calculate mean energy of each part. An equation was derived based on the relationship between the mean energy of sEMG and Borg scale. The results demonstrated that a quadratic curve reflected the relationship between fatigue energy and fatigue sensation, which suggests that fatigue energy can be calculated to use to collect sEMG activity recordings, and that fatigue sensation can be determined using this evaluation model. This model therefore provides a suitable basis for developing fatigue-monitoring equipment based on sEMG activity, as well as providing a theoretical and design basis for monitoring the fatigue levels of operators, and designing and planning jobs to make them more ergonomic and intuitive.

Original languageEnglish
Title of host publicationDigital Human Modeling and Applications in Health, Safety, Ergonomics, and Risk Management
Subtitle of host publicationHuman Body Modeling and Ergonomics
Pages179-185
Number of pages7
EditionPART 2
DOIs
StatePublished - 2013
Event4th Int. Conf. on Digital Human Modeling and Applications in Health, Safety, Ergonomics, and Risk Management: Human Body Modeling and Ergonomics, DHM 2013, Held as Part of 15th Int. Conf. on Human-Computer Interaction, HCI 2013 - Las Vegas, NV, United States
Duration: 21 Jul 201326 Jul 2013

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
NumberPART 2
Volume8026 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference4th Int. Conf. on Digital Human Modeling and Applications in Health, Safety, Ergonomics, and Risk Management: Human Body Modeling and Ergonomics, DHM 2013, Held as Part of 15th Int. Conf. on Human-Computer Interaction, HCI 2013
Country/TerritoryUnited States
CityLas Vegas, NV
Period21/07/1326/07/13

Keywords

  • fatigue energy
  • muscle fatigue
  • octave band
  • sEMG
  • subjective assessment

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