Energy balance
The health impact of reallocating time from MVPA is greater in obese children (zBMI > 2) than in the general population, suggesting MVPA interventions are more beneficial for this subgroup.
If a child is obese, increasing MVPA is even more critical for improving BMI outcomes than for non-obese peers. The penalty for losing MVPA time is steeper in obese children, making MVPA maintenance a key focus for obesity prevention programs.
These findings suggest that MVPA interventions may have greater benefit in children classified as obese.
Why this rating
Cross-sectional data limits causal claims, but the subgroup analysis is clearly reported with specific effect sizes.
Source
The compositional isotemporal substitution model: A method for estimating changes in a health outcome for reallocation of time between sleep, physical activity and sedentary behaviour
Dorothea Dumuid et al. · Statistical Methods in Medical Research · 2017
DOI 10.1177/0962280217737805
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