{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Migueles JH"],"funding":["Vetenskapsrådet","Karolinska Institutet","Forskningsrådet om Hälsa, Arbetsliv och Välfärd"],"pagination":["e12909"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC9539596"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["17(8)"],"pubmed_abstract":["<h4>Background</h4>Information is limited for the benefits of physical activity (PA) in preschoolers. Previous research using accelerometer-assessed PA may be affected for multicollinearity issues.<h4>Objectives</h4>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.<h4>Methods</h4>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.<h4>Results</h4>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<sup>2</sup> , 95% confidence intervals [CI]: 0.18-0.72 kg/m<sup>2</sup> ), 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.<h4>Conclusions</h4>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."],"journal":["Pediatric obesity"],"pubmed_title":["Revisiting the cross-sectional and prospective association of physical activity with body composition and physical fitness in preschoolers: A compositional data approach."],"pmcid":["PMC9539596"],"funding_grant_id":["2012‐2883","2012‐0906"],"pubmed_authors":["Lof M","Henriksson P","Leppanen MH","Delisle Nystrom C","Migueles JH"],"additional_accession":[]},"is_claimable":false,"name":"Revisiting the cross-sectional and prospective association of physical activity with body composition and physical fitness in preschoolers: A compositional data approach.","description":"<h4>Background</h4>Information is limited for the benefits of physical activity (PA) in preschoolers. Previous research using accelerometer-assessed PA may be affected for multicollinearity issues.<h4>Objectives</h4>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.<h4>Methods</h4>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.<h4>Results</h4>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<sup>2</sup> , 95% confidence intervals [CI]: 0.18-0.72 kg/m<sup>2</sup> ), 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.<h4>Conclusions</h4>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.","dates":{"release":"2022-01-01T00:00:00Z","publication":"2022 Aug","modification":"2026-05-28T03:31:03.136Z","creation":"2025-04-19T11:43:33.48Z"},"accession":"S-EPMC9539596","cross_references":{"pubmed":["35212168"],"doi":["10.1111/ijpo.12909"]}}