Sex differences in upper limb 3D joint contributions during a lifting task

Type de document

Études primaires

Année de publication

2019

Langue

Anglais

Titre de la revue

Ergonomics

Première page

682

Dernière page

693

Résumé

Sex-related differences in work technique may contribute to increasing the risk of musculoskeletal joint disorders among women. In lifting tasks, sex differences have been reported for the trunk and lower limb, although women present a higher prevalence of shoulder disorders. We investigated sex differences in the upper limb technique during a lifting task. Trunk and upper limb kinematics were recorded in 27 women and 27 men lifting a box (6 or 12 kg) from hip to eye level. Work technique was quantified through the three-dimensional contribution of each joint to overall box height. The glenohumeral joint showed a higher contribution in women with a 6 kg box and wrist and elbow joints did with a 12 kg box, compared to men at either 6 or 12 kg. Sex differences occurred systematically above shoulder level. Our results argue for careful consideration of sex during ergonomic intervention, particularly during the overhead task.

Mots-clés

Troubles musculosquelettiques, Musculoskeletal disease, Épaule, Shoulder, Manutention manuelle, Manual handling, Soulèvement des charges, Manual lifting, Différence liée au sexe, Sex difference, Électromyographie, Electromyography, Mécanique humaine, Body

Numéro de projet IRSST

2014-0045

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