Sex differences in upper limb musculoskeletal biomechanics during a lifting task.
Adult
Biomechanical Phenomena
Electromyography
Ergonomics
Female
Healthy Volunteers
Humans
Lifting
Male
Muscle, Skeletal
/ physiology
Musculoskeletal Diseases
/ etiology
Occupational Diseases
/ etiology
Sex Factors
Shoulder
/ physiology
Task Performance and Analysis
Upper Extremity
/ physiology
Weight-Bearing
/ physiology
Workload
Young Adult
Musculoskeletal modelling
Sex differences
Upper limb
Journal
Applied ergonomics
ISSN: 1872-9126
Titre abrégé: Appl Ergon
Pays: England
ID NLM: 0261412
Informations de publication
Date de publication:
Jul 2020
Jul 2020
Historique:
received:
21
10
2019
revised:
26
03
2020
accepted:
27
03
2020
entrez:
29
4
2020
pubmed:
29
4
2020
medline:
7
2
2021
Statut:
ppublish
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 12kg 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.
Identifiants
pubmed: 32342895
pii: S0003-6870(20)30067-3
doi: 10.1016/j.apergo.2020.103106
pii:
doi:
Types de publication
Journal Article
Randomized Controlled Trial
Langues
eng
Sous-ensembles de citation
IM
Pagination
103106Informations de copyright
Copyright © 2020 Elsevier Ltd. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.