6533b82afe1ef96bd128b9c1

RESEARCH PRODUCT

Revisiting the cross‐sectional and prospective association of physical activity with body composition and physical fitness in preschoolers: A compositional data approach

Jairo H. MiguelesChristine Delisle NyströmMarja H. LeppänenPontus HenrikssonMarie Löf

subject

sedentary timelapset (ikäryhmät)liikuntamovement behaviourBody Mass Indexistuminenfitness trackerAccelerometryHumansseurantaExercisekehonkoostumusyouthNutrition and DieteticsHealth PolicyPublic Health Environmental and Occupational HealthPublic Health Global Health Social Medicine and Epidemiologymovement sensorfyysinen kuntoFolkhälsovetenskap global hälsa socialmedicin och epidemiologiCross-Sectional Studiesleikki-ikäisetPhysical FitnessChild PreschoolPediatrics Perinatology and Child HealthBody Compositionfyysinen aktiivisuusfitness tracker; movement behaviour; movement sensor; sedentary time; youth

description

Background Information is limited for the benefits of physical activity (PA) in preschoolers. Previous research using accelerometer-assessed PA may be affected for multicollinearity issues. Objectives This study investigated the cross-sectional and prospective associations of sedentary behaviour (SB) and PA with body composition and physical fitness using compositional data analysis. Methods Baseline PA and SB were collected in 4-year-old (n = 315) using wrist-worn GT3X+ during seven 24 h-periods. Body composition (air-displacement plethysmography) and physical fitness (PREFIT test battery) were assessed at baseline and at the 12-month follow-up. Results Increasing vigorous PA at expenses of lower-intensity behaviours for 4-year-old was associated with body composition and physical fitness at cross-sectional and longitudinal levels. For example, reallocating 15 min/day from lower intensities to vigorous PA at baseline was associated with higher fat-free mass index (+0.45 kg/m(2), 95% confidence intervals [CI]: 0.18-0.72 kg/m(2)), higher upper-body strength (+0.6 kg, 95% CI: 0.1-1.19 kg), higher lower-body strength (+8 cm, 95% CI: 3-13 cm), and shorter time in completing the motor fitness test (-0.4 s, 95% CI: -0.82 to [-0.01] s) at the 12-month follow-up. Pairwise reallocations of time indicated that the behaviour replaced was not relevant, as long as vigorous PA was increased. Conclusions More time in vigorous PA may imply short- and long-term benefits on body composition and physical fitness in preschoolers. These findings using compositional data analysis corroborate our previously published results using isotemporal substitution models. Funding Agencies|Bo and Vera Axson Johnsons Foundation; Forskningsradet om Halsa, Arbetsliv och Valfard [2012-0906]; Karolinska InstitutetKarolinska Institutet; VetenskapsradetSwedish Research Council [2012-2883]

yearjournalcountryeditionlanguage
2022-01-01Pediatric Obesity
https://doi.org/10.1111/ijpo.12909