Metabolic risk and television time in adolescent females
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A sedentary lifestyle is increasingly implicated in a negative metabolic health profile among youth. The present study examined relationships between clustered metabolic risk factors and TV viewing in female adolescents.
The sample comprised 262 girls 14–17 years. Height, weight, fasting glucose, insulin, HDL cholesterol, triglycerides, and blood pressure were measured. Body mass index (BMI) was calculated. TV viewing time and moderate-to-vigorous physical activity (MVPA) were estimated from a 3-day diary. Outcome variables were normalized and expressed as Z scores which were summed into a metabolic risk score. Multiple linear regression analysis was used.
TV viewing was independently associated with increased prevalence of clustered metabolic risk in girls after adjustment for several confounders (i.e., chronological age, BMI, MVPA, and parental education). The final model also indicated that lower levels of MVPA, higher BMI, and lower mother education were associated with higher metabolic risk.
Increased TV viewing had an adverse effect on metabolic health of adolescent girls. The findings highlight the potential importance of preventive actions to ameliorate metabolic risk in youth which target both sedentary and physically active behaviors.
KeywordsPublic health Sedentary behavior Youth Overweight Lifestyle
The authors acknowledge the support provided by the CAPES (Coordenação de Aperfeiçoamento de Pessoal de Nível Superior)—“Impacto do peso ao nascimento e do estilo de vida sobre fatores de risco metabólico, hiperandrogenismo e anovulação em meninas e adolescentes” Project.
Conflict of interest
The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the paper.
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