Revisiting the cross-sectional and prospective association of physical activity with body composition and physical fitness in preschoolers: A compositional data approach.
Pediatr Obes
; 17(8): e12909, 2022 08.
Article
en En
| MEDLINE
| ID: mdl-35212168
ABSTRACT
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/m2 , 95% confidence intervals [CI] 0.18-0.72 kg/m2 ), 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.Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Ejercicio Físico
/
Aptitud Física
Tipo de estudio:
Observational_studies
/
Prevalence_studies
/
Prognostic_studies
/
Risk_factors_studies
Límite:
Child, preschool
/
Humans
Idioma:
En
Revista:
Pediatr Obes
Año:
2022
Tipo del documento:
Article
País de afiliación:
Suecia