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Article

Investigating Kinematics and Electromyography Changes in Manual Handling Tasks with an Active Lumbar Exoskeleton

by
Mélissa Moulart
1,2,
Maxime Acien
3,
Audrey Leonard
4,
Mathilde Loir
5,
Nicolas Olivier
6 and
Frédéric Marin
1,*
1
UMR CNRS 7338 BioMécanique et BioIngénierie, Université de Technologie de Compiègne (UTC), 60200 Compiègne, France
2
Japet Medical Devices, 59120 Loos, France
3
Faculté des Sciences du Sport, Université Paris-Saclay, 91190 Gif-sur-Yvette, France
4
Faculté des Sciences du Sport, Université de Poitiers, 86073 Poitiers, France
5
Centre Hospitalier de Maubeuge, 59600 Maubeuge, France
6
ULR 7369—URePSSS—Unité de Recherche Pluridisciplinaire Sport Santé Société, Université de Lille, 59000 Lille, France
*
Author to whom correspondence should be addressed.
Biomechanics 2024, 4(2), 357-368; https://doi.org/10.3390/biomechanics4020025
Submission received: 4 March 2024 / Revised: 16 May 2024 / Accepted: 24 May 2024 / Published: 4 June 2024
(This article belongs to the Section Tissue and Vascular Biomechanics)
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Abstract

Companies are becoming increasingly aware of the health of their employees and are now integrating exoskeleton solutions for both prevention and job maintenance. However, the effect of using exoskeletons is still an open question. Therefore, this study aimed to evaluate the impact of an active lumbar exoskeleton and its passive belt on trunk kinematics and muscle activity using instrumented motion analysis. Twenty-three healthy subjects volunteered to perform three handlings of a 5 kg load (free lifting, squat lifting, and load transfer) under three different experimental conditions. The “Control” condition was when the subject did not wear any device, the “Belt” condition was when the subject wore only the passive part of the exoskeleton, and the “Exo” condition was when the subject wore the active exoskeleton. Based on the Rapid Upper Limb Assessment scale, the exoskeleton reduced the time spent in angles that were considered dangerous for the back, according to ergonomic evaluations. Furthermore, for the handling sessions, it was observed that the exoskeleton did not modify muscle activity in the abdominal–lumbar region.
Keywords: lumbar spine; exoskeleton; motion analysis; kinematics; electromyography; handling lumbar spine; exoskeleton; motion analysis; kinematics; electromyography; handling

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MDPI and ACS Style

Moulart, M.; Acien, M.; Leonard, A.; Loir, M.; Olivier, N.; Marin, F. Investigating Kinematics and Electromyography Changes in Manual Handling Tasks with an Active Lumbar Exoskeleton. Biomechanics 2024, 4, 357-368. https://doi.org/10.3390/biomechanics4020025

AMA Style

Moulart M, Acien M, Leonard A, Loir M, Olivier N, Marin F. Investigating Kinematics and Electromyography Changes in Manual Handling Tasks with an Active Lumbar Exoskeleton. Biomechanics. 2024; 4(2):357-368. https://doi.org/10.3390/biomechanics4020025

Chicago/Turabian Style

Moulart, Mélissa, Maxime Acien, Audrey Leonard, Mathilde Loir, Nicolas Olivier, and Frédéric Marin. 2024. "Investigating Kinematics and Electromyography Changes in Manual Handling Tasks with an Active Lumbar Exoskeleton" Biomechanics 4, no. 2: 357-368. https://doi.org/10.3390/biomechanics4020025

APA Style

Moulart, M., Acien, M., Leonard, A., Loir, M., Olivier, N., & Marin, F. (2024). Investigating Kinematics and Electromyography Changes in Manual Handling Tasks with an Active Lumbar Exoskeleton. Biomechanics, 4(2), 357-368. https://doi.org/10.3390/biomechanics4020025

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