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- W2005018829 abstract "Purpose: This study aimed to investigate the influence of childhood obesity on energetic cost during normal walking and to determine if obese children choose a walking strategy optimizing their gait pattern. Method: Sixteen obese children with no functional abnormalities were matched by age and gender with 16 normal-weight children. All participants were asked to walk along a nearly circular track 30 m in length at a self-selected speed. Spatiotemporal data, kinematics, and ground reaction force were collected during walking using a three-dimensional motion analysis system. Metabolic cost was collected by a portable gas analyzer simultaneously. Results: The mechanical energy expenditure (MEE) was 72.7% higher in obese children than in normal-weight children. The net metabolic cost was 65.7% higher in obese children. No difference was found in the metabolic rate (J·kg− 1·m− 1), normalized MEE (J·kg− 1·m− 1) and mechanical efficiency between the obese and normal-weight groups. The obese children walked with a 0.15 m/s slower walking speed, 10.0% shorter cadence, and 30.9% longer double-support phase compared with normal-weight children. In addition, no differences were found in the mediolateral and vertical body center of mass displacement. Conclusion: Body mass played a dominant role in the total metabolic and mechanical cost per stride. Obese children may adopt a walking strategy to avoid an increase in the metabolic cost and the mechanical work required to move their excess body mass." @default.
- W2005018829 created "2016-06-24" @default.
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- W2005018829 date "2013-12-06" @default.
- W2005018829 modified "2023-10-16" @default.
- W2005018829 title "Metabolic Cost, Mechanical Work, and Efficiency During Normal Walking in Obese and Normal-Weight Children" @default.
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- W2005018829 doi "https://doi.org/10.1080/02701367.2013.849159" @default.
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