Cross-sectional and prospective associations between sleep, screen time, active school travel, sports/exercise participation and physical activity in children and adolescents.
BMC Public Health
; 18(1): 705, 2018 06 07.
Article
en En
| MEDLINE
| ID: mdl-29879929
ABSTRACT
BACKGROUND:
The aim of this study was to investigate how sleep, screen time, active school travel and sport and/or exercise participation associates with moderate-to-vigorous physical activity (MVPA) in nationally representative samples of Norwegian 9- and 15-y-olds, and whether these four behaviors at age nine predict change in MVPA from age nine to 15 years.METHOD:
We pooled cross-sectional accelerometer and questionnaire data from 9- (n = 2366) and 15-y-olds (n = 1554) that participated in the first (2005/06) and second (2011/12) wave of the Physical Activity among Norwegian Children Study to investigate cross-sectional associations. To investigate prospective associations, we used data from a sub-sample that participated in both waves (at age nine and 15 years, n = 517).RESULTS:
Cross-sectional analyses indicated a modest, inverse association between screen time and MVPA among 9- (- 2.2 min/d (95% CI -3.1, - 1.3)) and 15-y-olds (- 1.7 min/d (95% CI -2.7, - 0.8)). Compared to their peers with 0-5 min/d of active travel to school, 9- and 15-y-olds with ≥16 min/d accumulated 7.2 (95% CI 4.0, 10.4) and 9.0 (95% CI 3.8, 14.1) more min/d of MVPA, respectively. Nine-y-old boys and 15-y-olds reporting ≥8 h/week of sports and/or exercise participation accumulated 14.7 (95% CI 8.2, 21.3) and 17.9 (95% CI 14.0, 21.8) more min/d of MVPA, respectively, than those reporting ≤2 h/week. We found no cross-sectional association between sleep duration and MVPA in either age group. None of the four behaviors predicted change in MVPA from age nine to 15 years (p ≥ 0.102).CONCLUSION:
Active travel to school and sport/exercise participation may be important targets for future interventions aimed at increasing MVPA in children and adolescents. However, future studies are needed to determine causality.Palabras clave
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Instituciones Académicas
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Sueño
/
Deportes
/
Transportes
/
Ejercicio Físico
/
Tiempo de Pantalla
Tipo de estudio:
Observational_studies
/
Prevalence_studies
/
Risk_factors_studies
Límite:
Adolescent
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Child
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Female
/
Humans
/
Male
País/Región como asunto:
Europa
Idioma:
En
Revista:
BMC Public Health
Asunto de la revista:
SAUDE PUBLICA
Año:
2018
Tipo del documento:
Article
País de afiliación:
Noruega