The use of a three-dimensional dynamic arm support prevents the development of muscle fatigue during repetitive manual tasks in healthy individuals

Work-related upper extremity disorders are costly to society due to resulting medical costs, presenteeism and absenteeism. Although their aetiology is likely multifactorial, physical workplace factors are known to play an important role in their development. Promising options for preventing work-rel...

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Published in:PloS one 2022-04, Vol.17 (4), p.e0266390-e0266390
Main Authors: Lavallée-Bourget, Marie-Hélène, Campeau-Lecours, Alexandre, Tittley, Jean, Bielmann, Mathieu, Bouyer, Laurent J, Roy, Jean-Sébastien
Format: Article
Language:English
Subjects:
Absenteeism
Adaptive technology
Arm
Arm - physiology
Biology and Life Sciences
Biomechanical Phenomena
Disorders
Elbow
Elbow (anatomy)
Electromyography
Electromyography - methods
Fatigue
Handedness
Health care expenditures
Humans
Inertial sensing devices
Interdisciplinary aspects
Kinematics
Medicine
Medicine and Health Sciences
Muscle fatigue
Muscle Fatigue - physiology
Muscle function
Muscle, Skeletal - physiology
Muscles
Muscular fatigue
Musculoskeletal diseases
Neuromuscular diseases
Physical Sciences
Power structure
Prevention
Rehabilitation
Risk factors
Self-help devices for the disabled
Sensors
Shoulder
Shoulder - physiology
Social integration
Tasks
Upper Extremity - physiology
Work-related injuries
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cited_by cdi_FETCH-LOGICAL-c6070-eaabd7bc7f12aa8ebe1330d583d965afea78242b34103646549c82e772d0c4db3
cites cdi_FETCH-LOGICAL-c6070-eaabd7bc7f12aa8ebe1330d583d965afea78242b34103646549c82e772d0c4db3
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container_issue 4
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container_title PloS one
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creator Lavallée-Bourget, Marie-Hélène
Campeau-Lecours, Alexandre
Tittley, Jean
Bielmann, Mathieu
Bouyer, Laurent J
Roy, Jean-Sébastien
description Work-related upper extremity disorders are costly to society due to resulting medical costs, presenteeism and absenteeism. Although their aetiology is likely multifactorial, physical workplace factors are known to play an important role in their development. Promising options for preventing work-related upper extremity disorders include assistive technologies such as dynamic arm supports designed to follow the movement of the arm while compensating for its weight. The objective of this study was to assess the effects of a dynamic arm support on perceived exertion, muscle activity and movement patterns of the upper limb during repetitive manual tasks in healthy individuals. Thirty healthy right-handed individuals were allocated either a static or a dynamic task to perform with and without a dynamic arm support. During the task, surface electromyographic activity (anterior and middle deltoid, upper trapezius) and upper limb kinematics (elbow, shoulder, sternoclavicular) were measured using surface EMG and inertial sensors. Results showed that the dynamic arm support significantly reduced perceived exertion during the tasks and limited the development of muscular fatigue of the anterior and middle deltoid as demonstrated by EMG signal mean epoch amplitudes and median frequency of the EMG power spectrum. The dynamic arm support also prevented a decrease in shoulder elevation and an increase in total shoulder joint excursion during static and dynamic task, respectively. These results denote the potential benefits of dynamic arm supports in work environments. Further studies should focus on their efficacy, acceptability and implementability in work settings.
doi_str_mv 10.1371/journal.pone.0266390
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source Publicly Available Content (ProQuest); PubMed Central; Sociological Abstracts
subjects Absenteeism
Adaptive technology
Arm
Arm - physiology
Biology and Life Sciences
Biomechanical Phenomena
Disorders
Elbow
Elbow (anatomy)
Electromyography
Electromyography - methods
Fatigue
Handedness
Health care expenditures
Humans
Inertial sensing devices
Interdisciplinary aspects
Kinematics
Medicine
Medicine and Health Sciences
Muscle fatigue
Muscle Fatigue - physiology
Muscle function
Muscle, Skeletal - physiology
Muscles
Muscular fatigue
Musculoskeletal diseases
Neuromuscular diseases
Physical Sciences
Power structure
Prevention
Rehabilitation
Risk factors
Self-help devices for the disabled
Sensors
Shoulder
Shoulder - physiology
Social integration
Tasks
Upper Extremity - physiology
Work-related injuries
title The use of a three-dimensional dynamic arm support prevents the development of muscle fatigue during repetitive manual tasks in healthy individuals
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