Acute simulated weight gain might not increase the energy cost of walking in adolescents with obesity
Authors' conclusion
While EE and Cw have been shown to decrease in response to weight loss, potentially as a way to save stored energy and limit further weight loss, inverse adaptations do not seem to occur with increased acute simulated weight gain in weight stable adolescents with obesity.
Study context
- Population
- Adolescents with obesity (14.2 ± 1.4 years, BMI 33.86 ± 2.55 kg.m-2)
- Participants
- 18 adolescents
- Comparison
- Simulated weight gain of 5% and 10% vs own body weight
- Primary endpoint
- Energy cost of walking (Cw) at different walking speeds (0.75, 1, 1.25, 1.5 m.s-1)
Methodological detailsthree randomized body weight conditions, graded walking exercise
- Three randomized body weight conditions
- Graded walking exercise
Primary result
As reported in the abstract
Cw
- Gross cost of walking (Cw) showed overall speed effect
- p < 0.001
- Net Cw (absolute, relative to BW and FFM) showed a significant speed effect but no BW-conditions nor interaction effect
- <0.001
Further findings
- EE differed between BW-conditions, lower on BW + 5% than BW + 10% (absolute, relative to BW, relative to FFM)
- P = 0.017, 0.006 and 0.007, respectively
Original publication
Acute simulated weight gain might not increase the energy cost of walking in adolescents with obesity. Pediatr Obes. Published 30 December 2024. doi:10.
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