Kinematic and perceptual responses in heavy lifting and pulling: Are there differences between males and females?
Kinematics
Perceived workload
Sex differences
Journal
Applied ergonomics
ISSN: 1872-9126
Titre abrégé: Appl Ergon
Pays: England
ID NLM: 0261412
Informations de publication
Date de publication:
Jan 2021
Jan 2021
Historique:
received:
09
03
2020
revised:
11
09
2020
accepted:
14
09
2020
pubmed:
27
9
2020
medline:
19
8
2021
entrez:
26
9
2020
Statut:
ppublish
Résumé
This study investigated kinematic and perceptual differences between the sexes in a heavy lifting and pulling task. A 20 kg box was lifted from floor to chest height, and a 70 kg mannequin pulled across 20m. The effect of height, mass and average grip strength on kinematics and perceived workload was examined in 42 (19 females, 23 males) healthy individuals. A univariate linear regression analysis found females lifted with greater lumbar extension compared to males (p < 0.001), and adopted more hip (p = 0.006) and knee flexion (p = 0.036) in the pulling task. Females reported a greater perceived workload in both tasks (p < 0.001). After the multivariable analysis, only grip strength remained significant for perceived workload in the lift (p = 0.04), and height for knee flexion in the pull (p = 0.009). This highlights that height and strength are important factors driving kinematics and perceived workload. Clinicians may consider these factors in heavy manual tasks, more so than sex.
Identifiants
pubmed: 32979817
pii: S0003-6870(20)30223-4
doi: 10.1016/j.apergo.2020.103274
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
103274Informations de copyright
Copyright © 2020 Elsevier Ltd. All rights reserved.