Abstract
ABSTRACTObjective: To verify the association between screen time and cardiorespiratory fitness with the presence of metabolic risk in schoolchildren in an isolated and clustered manner.Methods: Cross-sectional study with 1.200 schoolchildren from Santa Cruz do Sul-RS. Screen time and cardiorespiratory fitness were evaluated. The continuous metabolic risk score was calculated by summing the Z score of the waist circumference, systolic blood pressure, glucose, triglycerides, total cholesterol, low-density lipoprotein (LDL-C) and high-density lipoprotein (HDL-C).Results: Children (34.3%) and adolescents (48.2%) had high screen time, while 44.3% of the children and 53.3% of the adolescents were unfit in relation to cardiorespiratory fitness. Regarding the relation of screen time/cardiorespiratory fitness, 14.7% of the children and 26.9% of the adolescents presented high screen time and low levels of cardiorespiratory fitness. The presence of metabolic risk was shown in children (17.1%) and adolescents (14.7%). The presence of metabolic risk was directly associated with low levels of cardiorespiratory fitness in children and adolescents. When analyzed in clusters, the metabolic risk in children was 11% more prevalent in subjects with low screen time/unfit and 12% in subjects with high screen time/unfit, whereas in adolescents, the prevalence of metabolic risk was also higher in those with low screen time/unfit (8%) and high screen time/unfit (7%).Conclusions: The presence of metabolic risk in children and adolescents was associated with low levels of cardiorespiratory fitness, independent of screen time, in an isolated or clustered manner.
Highlights
The American College of Sports Medicine[1] recommends that in order to guarantee health benefits children and adolescents between six and 17 years of age should perform at least 60 minutes of moderate to intense aerobic physical activity daily
Despite the vast evidence in the literature that show that sedentary behavior and cardiorespiratory fitness (CRF) are metabolic risks when verified in an isolated way, there are few studies on the role of the relationship between screen time and CRF in a clustered manner with the appearance of metabolic changes in the children and youth population
The presence of metabolic risk was evidenced in 17.1% of children and in 14.7% of adolescents
Summary
The American College of Sports Medicine[1] recommends that in order to guarantee health benefits children and adolescents between six and 17 years of age should perform at least 60 minutes of moderate to intense aerobic physical activity daily. Among these benefits, there is an improvement in metabolic risk factors, a systematic review study[2] reports that young Brazilians are characterized by adopting health risk behaviors, such as physical inactivity, sedentary behaviors and inadequate nutrition, which can represent a serious threat to the current and future health of young people.[3]. Despite the vast evidence in the literature that show that sedentary behavior and CRF are metabolic risks when verified in an isolated way, there are few studies on the role of the relationship between screen time and CRF in a clustered manner with the appearance of metabolic changes in the children and youth population
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