Sex differences in upper limb musculoskeletal biomechanics during a lifting task
Type de document
Études primaires
Année de publication
2020
Langue
Anglais
Titre de la revue
Applied Ergonomics
Résumé
Women experience higher prevalence of work-related upper limb musculoskeletal disorders compared to men. Previous studies have investigated the biological, kinematic and electromyographic sex-related differences during a lifting task but the actual differences in musculoskeletal loads remain unknown. We investigated the sex differences in three musculoskeletal indicators: the sum of muscle activations, the sum of muscle forces and the relative time spent beyond a shear-compression dislocation ratio. A musculoskeletal model was scaled on 20 women and 20 men lifting a 6 or 12 kg box from hip to eye level. Women generated more muscle forces and activations than men, regardless of the lifted mass. Those differences occurred when the box was above shoulder level. In addition, women might spend more time beyond a shear-compression dislocation ratio. Our work suggests higher musculoskeletal loads among women compared to men during a lifting task, which could be the result of poor technique and strength difference. © 2020 Elsevier Ltd
Mots-clés
Troubles musculosquelettiques, Musculoskeletal disease, Différence liée au sexe, Sex difference, Mécanique humaine, Body mechanics, Affection des membres supérieurs, Upper extremity disorder, Soulèvement des charges, Manual lifting, Manutention manuelle, Manual handling
Numéro de projet IRSST
2014–0045
Citation recommandée
Martinez, R., Assila, N., Goubault, E. et Begon, M. (2020). Sex differences in upper limb musculoskeletal biomechanics during a lifting task. Applied Ergonomics, 86, article 103106. https://doi.org/10.1016/j.apergo.2020.103106
