Associations between self-reported physical activity and screen time with cardiometabolic risk factors in adolescents: Findings from the 1993 Pelotas (Brazil) Birth Cohort Study.
Prev Med
; 119: 31-36, 2019 02.
Article
em En
| MEDLINE
| ID: mdl-30578907
ABSTRACT
The overall aim of this study was to examine the association of physical activity (PA) and screen time (ST) on indicators of cardio-metabolic risk during adolescence, by examining the combined association of PA and ST at ages 11, 15 and 18 on cardio-metabolic risk factors at 18â¯years. Data from the 1993 Pelotas (Brazil) Birth Cohort Study (Nâ¯=â¯3613) were analysed in 2017. Self-reported PA and ST data were collected at 11, 15 and 18â¯years. Cardio-metabolic risk factors (fat mass index, waist circumference, triglycerides, blood glucose, non-HDL cholesterol and resting diastolic blood pressure) were examined at age 18. Multivariate linear regression was used to examine the associations between four mutually exclusive PA/ST groups 1) active (≥1â¯h/day PA) and low ST (<5â¯h/day ST); 2) active (≥1â¯h/day PA) and high ST (≥5â¯h/day ST); 3) inactive (<1â¯h/day PA) and low ST (<5â¯h/day ST); 4) inactive (<1â¯h/day PA) and high ST (≥5â¯h/day ST) at each age, and outcomes at age 18. There were no significant associations between PA/ST at ages 11 and 15 with outcomes at 18â¯years. In the cross-sectional analyses, adolescents in the most active group had significantly better levels of all the outcomes, regardless of ST. Inactive participants with high ST had the highest levels of glucose and non-HDL-C. For diastolic blood pressure, values were higher among inactive participants. Overall, higher levels of physical activity appeared to be more important than low levels of ST for cardio-metabolic health in adolescents.
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Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Doenças Cardiovasculares
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Exercício Físico
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Autorrelato
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Tempo de Tela
Tipo de estudo:
Diagnostic_studies
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Etiology_studies
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Incidence_studies
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Observational_studies
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Risk_factors_studies
Limite:
Adolescent
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Child
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Female
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Humans
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Male
País como assunto:
America do sul
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Brasil
Idioma:
En
Ano de publicação:
2019
Tipo de documento:
Article