The Effect of Obesity Class on the Energetics and Mechanics of Walking.

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License: CC BY 4.0
Serval ID
serval:BIB_4B0EBD99348C
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
The Effect of Obesity Class on the Energetics and Mechanics of Walking.
Journal
Nutrients
Author(s)
Primavesi J., Fernández Menéndez A., Hans D., Favre L., Crettaz von Roten F., Malatesta D.
ISSN
2072-6643 (Electronic)
ISSN-L
2072-6643
Publication state
Published
Issued date
18/12/2021
Peer-reviewed
Oui
Volume
13
Number
12
Pages
4546
Language
english
Notes
Publication types: Comparative Study ; Journal Article
Publication Status: epublish
Abstract
Higher mass-normalized net energy cost of walking (NetC <sub>w/kg</sub> ) and mechanical pendular recovery are observed in obese compared to lean adults. This study aimed to investigate the effect of different classes of obesity on the energetics and mechanics of walking and to explore the relationships between body mass, NetC <sub>w/kg</sub> and gait mechanics by using principal component analysis (PCA). NetC <sub>w/kg</sub> and gait mechanics were computed in severely obese (SOG; n = 18, BMI = 40.1 ± 4.4 kg·m <sup>-2</sup> ), moderately obese (MOG; n = 17, BMI = 32.2 ± 1.5 kg·m <sup>-2</sup> ) and normal-weight (NWG; n = 13, BMI = 22.0 ± 1.5 kg·m <sup>-2</sup> ) adults during five walking trials (0.56, 0.83, 1.11, 1.39, 1.67 m·s <sup>-1</sup> ) on an instrumented treadmill. NetC <sub>w/kg</sub> was significantly higher in SOG compared to NWG (p = 0.019), with no significant difference between SOG and MOG (p = 0.14), nor between MOG and NWG (p = 0.27). Recovery was significantly higher in SOG than in NWG (p = 0.028), with no significant difference between SOG and MOG (p = 0.13), nor between MOG and NWG (p = 0.35). PCA models explained between 17.0% and 44.2% of the data variance. This study showed that: (1) obesity class influences the gait energetics and mechanics; (2) PCA was able to identify two components, showing that the obesity class is associated with lower walking efficiency and better pendulum-like characteristics.
Keywords
Adult, Biomechanical Phenomena, Body Mass Index, Energy Metabolism, Female, Gait/physiology, Humans, Male, Obesity/classification, Obesity/metabolism, Obesity/physiopathology, Patient Acuity, Principal Component Analysis, Thinness, Walking/physiology, energy cost, gait, mechanical work, principal component analysis, recovery
Pubmed
Web of science
Open Access
Yes
Create date
21/12/2021 9:32
Last modification date
20/07/2022 6:09
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