Development of a Low-Cost Portable EMG for Measuring the Muscular Activity of Workers in the Field

This study explores the development and validation of a low-cost electromyography (EMG) device for monitoring muscle activity and muscle fatigue by monitoring the key features in EMG time and frequency domains. The device consists of a Raspberry Pico microcontroller interfacing a Myoware EMG module....

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Main Authors: Mohamed Garouche, Ornwipa Thamsuwan
Format: Article
Language:English
Published: MDPI AG 2023-09-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/23/18/7873
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author Mohamed Garouche
Ornwipa Thamsuwan
author_facet Mohamed Garouche
Ornwipa Thamsuwan
author_sort Mohamed Garouche
collection DOAJ
description This study explores the development and validation of a low-cost electromyography (EMG) device for monitoring muscle activity and muscle fatigue by monitoring the key features in EMG time and frequency domains. The device consists of a Raspberry Pico microcontroller interfacing a Myoware EMG module. The experiment involved 34 volunteers (14 women, 20 men) who performed isometric and isotonic contractions using a hand dynamometer. The low-cost EMG device was compared to a research-grade EMG device, recording EMG signals simultaneously. Key features including root mean square (RMS), median power frequency (MDF), and mean power frequency (MNF) were extracted to evaluate muscle fatigue. During isometric contraction, a strong congruence between the two devices, with similar readings and behavior of the extracted features, was observed, and the Wilcoxon signed rank test confirmed no significant difference in the ability to detect muscle fatigue between the devices. For isotonic contractions, the low-cost device demonstrated behavior similar to the professional EMG device in 70.58% of cases, despite some susceptibility to noise and movement. This suggests the potential viability of the low-cost EMG device as a portable tool for assessing muscle fatigue, enabling accessible and cost-effective management of muscle health in various work scenarios.
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spelling doaj.art-508502a62bc443f38d911d01518af9082023-11-19T12:55:25ZengMDPI AGSensors1424-82202023-09-012318787310.3390/s23187873Development of a Low-Cost Portable EMG for Measuring the Muscular Activity of Workers in the FieldMohamed Garouche0Ornwipa Thamsuwan1Department of Mechanical Engineering, École de Technologie Supérieure, Montreal, QC H3C 1K3, CanadaDepartment of Mechanical Engineering, École de Technologie Supérieure, Montreal, QC H3C 1K3, CanadaThis study explores the development and validation of a low-cost electromyography (EMG) device for monitoring muscle activity and muscle fatigue by monitoring the key features in EMG time and frequency domains. The device consists of a Raspberry Pico microcontroller interfacing a Myoware EMG module. The experiment involved 34 volunteers (14 women, 20 men) who performed isometric and isotonic contractions using a hand dynamometer. The low-cost EMG device was compared to a research-grade EMG device, recording EMG signals simultaneously. Key features including root mean square (RMS), median power frequency (MDF), and mean power frequency (MNF) were extracted to evaluate muscle fatigue. During isometric contraction, a strong congruence between the two devices, with similar readings and behavior of the extracted features, was observed, and the Wilcoxon signed rank test confirmed no significant difference in the ability to detect muscle fatigue between the devices. For isotonic contractions, the low-cost device demonstrated behavior similar to the professional EMG device in 70.58% of cases, despite some susceptibility to noise and movement. This suggests the potential viability of the low-cost EMG device as a portable tool for assessing muscle fatigue, enabling accessible and cost-effective management of muscle health in various work scenarios.https://www.mdpi.com/1424-8220/23/18/7873muscle fatiguelow-cost electromyographymuscle injuriesmusculoskeletal disorders
spellingShingle Mohamed Garouche
Ornwipa Thamsuwan
Development of a Low-Cost Portable EMG for Measuring the Muscular Activity of Workers in the Field
Sensors
muscle fatigue
low-cost electromyography
muscle injuries
musculoskeletal disorders
title Development of a Low-Cost Portable EMG for Measuring the Muscular Activity of Workers in the Field
title_full Development of a Low-Cost Portable EMG for Measuring the Muscular Activity of Workers in the Field
title_fullStr Development of a Low-Cost Portable EMG for Measuring the Muscular Activity of Workers in the Field
title_full_unstemmed Development of a Low-Cost Portable EMG for Measuring the Muscular Activity of Workers in the Field
title_short Development of a Low-Cost Portable EMG for Measuring the Muscular Activity of Workers in the Field
title_sort development of a low cost portable emg for measuring the muscular activity of workers in the field
topic muscle fatigue
low-cost electromyography
muscle injuries
musculoskeletal disorders
url https://www.mdpi.com/1424-8220/23/18/7873
work_keys_str_mv AT mohamedgarouche developmentofalowcostportableemgformeasuringthemuscularactivityofworkersinthefield
AT ornwipathamsuwan developmentofalowcostportableemgformeasuringthemuscularactivityofworkersinthefield