Abstract
ABSTRACTObjective: To identify the impact of physical activity correlates with the isolated and combined presence of insufficient physical activity and high screen time among adolescents.Methods: A cross-sectional representative study was carried out with a sample of 786 adolescents (16.0±1.0 years; 53.9% girls) randomly selected in the schools of São José dos Pinhais, Paraná, Southern Brazil. The physical activity correlates analyzed were sex, nutritional status, economic class and sexual maturation. Physical activity level and screen time were measured and classified according to reference criteria. The associations were tested with Poisson regression and the population attributable fraction (PAF) verified the impact of correlates on the combined presence of insufficient level of physical activity and high screen time by the prevalence ratio (PR).Results: Among the studied adolescents, 84.7% (n=666) were considered insufficiently active, 96.4% (n=758) reported high screen time and 82.1% (n=645) presented the combined presence of these behaviors. The female sex and the high economic status were positively associated with the insufficient level of physical activity (PR=1.19; 95% confidence interval - 95%CI 1.12-1.27; PAF=15.97 - female/adjusted; PR=1,1; 95%CI 1,01-1,19; PAF=9,09 - high/adjusted class). The female sex also was positively associated to high screen time after adjustments (PR=1.18; 95%CI 1.10-1.27; PAF=15.25). The female sex was positively associated with the combined presence of these behaviors (PR=1.18; 95%CI 1.10-1.27) with a 15.25% impact on these behaviors.Conclusions: Physical activity correlates can have an impact on the insufficient level of physical activity and high screen time, especially among girls.
Highlights
Physical activity correlates can have an impact on the insufficient level of physical activity and high screen time, especially among girls
The results of this study can contribute with the understanding of the impact that the correlates of Physical activity (PA) have on the combined presence of insufficient levels of PA and high screen time, besides providing subsidies for planning and assessing interventions focusing on the promotion of PA10 for this age group
The highest proportion of adolescents presented with normal weight (82.7%), belonged to the intermediate economic class (57.6%), with pubertal maturational state (68.4%), insufficiently active (84.7%), with high screen time (96.4%), and combined presence of insufficient level of PA and high screen time (82.1%) (Table 1)
Summary
Physical activity correlates can have an impact on the insufficient level of physical activity and high screen time, especially among girls. Conclusões: Correlatos da AF podem ter impacto sobre o nível insuficiente de AFs e elevado tempo de tela, quando investigados de formas isolada e combinada, principalmente em relação às meninas. Palavras-chave: Atividade motora; Estilo de vida sedentário; Inatividade física
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