Biomechanical differences in experts' and novices' footstep patterns during a palletizing task
Type de document
Études primaires
Année de publication
2023
Langue
Anglais
Titre de la revue
Applied Ergonomics
Résumé
Very few studies have examined differences between experts' and novices' foot positioning and movements during manual materials handling tasks. The impact of footstep patterns on low back loading needs to be better understood. The goals of this study were to characterize foot placement and movements in novices and experts and to assess their impact on back loading considering the height of grasp. The task consisted in transferring 24 15 kg boxes from a pallet to another. Foot placement and movements were classified with a recently developed taxonomy. Results show that experts' feet remained static more often than novices' feet during the lifting phase. Positioning the feet towards the deposit site during lifting increased asymmetrical moments, especially for novices. Positioning one foot forward increased asymmetrical moments for novices. Overall, footstep strategies are an effective indicator of low back exposure and should be considered in ergonomic studies.
Mots-clés
Manutention manuelle, Manual handling, Posture de travail, Work posture, Mécanique humaine, Body mechanics, Méthode de travail et sécurité, Safe working method, Détermination expérimentale, Experimental determination
Numéro de projet IRSST
2017-0050
Citation recommandée
Vallée-Marcotte, J., Robert-Lachaine, X., Denis, D., Muller, A., Plamondon, A. et Corbeil, P. (2023). Biomechanical differences in experts' and novices' footstep patterns during a palletizing task. Applied Ergonomics, 106, article 103880. https://doi.org/10.1016/j.apergo.2022.103880