Speed, age, sex, and body mass index provide a rigorous basis for comparing the kinematic and kinetic profiles of the lower extremity during walking.

Détails

ID Serval
serval:BIB_F3FE9E1D2B8F
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Speed, age, sex, and body mass index provide a rigorous basis for comparing the kinematic and kinetic profiles of the lower extremity during walking.
Périodique
Journal of biomechanics
Auteur(s)
Chehab E.F., Andriacchi T.P., Favre J.
ISSN
1873-2380 (Electronic)
ISSN-L
0021-9290
Statut éditorial
Publié
Date de publication
14/06/2017
Peer-reviewed
Oui
Volume
58
Pages
11-20
Langue
anglais
Notes
Publication types: Journal Article
Publication Status: ppublish
Résumé
The increased use of gait analysis has raised the need for a better understanding of how walking speed and demographic variations influence asymptomatic gait. Previous analyses mainly reported relationships between subsets of gait features and demographic measures, rendering it difficult to assess whether gait features are affected by walking speed or other demographic measures. The purpose of this study was to conduct a comprehensive analysis of the kinematic and kinetic profiles during ambulation that tests for the effect of walking speed in parallel to the effects of age, sex, and body mass index. This was accomplished by recruiting a population of 121 asymptomatic subjects and analyzing characteristic 3-dimensional kinematic and kinetic features at the ankle, knee, hip, and pelvis during walking trials at slow, normal, and fast speeds. Mixed effects linear regression models were used to identify how each of 78 discrete gait features is affected by variations in walking speed, age, sex, and body mass index. As expected, nearly every feature was associated with variations in walking speed. Several features were also affected by variations in demographic measures, including age affecting sagittal-plane knee kinematics, body mass index affecting sagittal-plane pelvis and hip kinematics, body mass index affecting frontal-plane knee kinematics and kinetics, and sex affecting frontal-plane kinematics at the pelvis, hip, and knee. These results could aid in the design of future studies, as well as clarify how walking speed, age, sex, and body mass index may act as potential confounders in studies with small populations or in populations with insufficient demographic variations for thorough statistical analyses.

Mots-clé
Adult, Age Factors, Biomechanical Phenomena, Body Mass Index, Female, Humans, Kinetics, Lower Extremity/physiology, Male, Middle Aged, Pelvis/physiology, Sex Factors, Walking/physiology, Demographics, Gait analysis, Kinematics, Walking speed
Pubmed
Web of science
Création de la notice
23/05/2017 16:57
Dernière modification de la notice
20/08/2019 16:20
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