Are reallocating time to moderate-to-vigorous physical activity associated with preschoolers’ body composition?
Authors' conclusion
The findings highlight the importance of MVPA in improving preschoolers' body composition. Increasing MVPA at the expenses of SB may be a strategy to improve body composition in preschoolers.
Study context
- Population
- Preschool-aged children; Sedentary behavior (SB), LPA and MVPA by accelerometer, sleep by parental report, body composition by bioelectrical impedance
- Participants
- 268 children
- Exposure
- Reallocating time from SB to MVPA
- Outcome
- Predicted change in body composition when MVPA replaces SB
Methodological detailscompositional data analysis, compositional isotemporal substitution analysis
- Compositional data analysis
- Compositional isotemporal substitution analysis
Main finding
As reported in the abstract
Fat-free mass index (FFMI), kg/m²
+0.328
95% CI 0.063~0.593
Soft lean mass index (SLMI), kg/m²
+0.317
95% CI 0.067~0.567
Skeletal muscle mass index (SMMI), kg/m²
+0.254
95% CI 0.091~0.417
Observational data: associations, not effects.
Original publication
Are reallocating time to moderate-to-vigorous physical activity associated with preschoolers’ body composition? Int J Obes (Lond). Published 5 November 2025. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →