Comportamentos sedentários e prática de atividades físicas de adolescentes: um estudo sobre a associação do tempo de tela e a prática de atividade física

Abstract

The development of society brought with it a great technological evolution, providing more and more facilities and means of entertainment, among these facilities and entertainment we can highlight mainly television, computers and smartphones that are increasingly present in our daily lives. Therefore, this work aims to discuss the possible relationships between screen time

and adolescents' physical activity. For that, we used the sampling method, which was the single- stage cluster sampling, due to the number of public schools with high school in the city. All

were considered eligible to participate in the study, in total three schools participated in the study, the variables collected were: practice of physical activity in the previous week (minutes/week) and as independent variables television time, video game time, cell phone use, computer use (school and leisure), in minutes per week. Data analysis was performed descriptively, so that, for categorical variables, tables were obtained with absolute frequencies and percentages, and for quantitative variables, descriptive measures were obtained (minimum, mean, median, maximum and standard deviation). The software used to perform descriptive statistical analyzes were Microsoft Office Excel and Stata 13.0. The research was carried out with a total of 162 students, of which 73 were male and 89 were female. The analysis took into account only the total time without gender differentiation. In the bivariate analysis, only computer time for school and leisure were associated with the practice of physical activities. Playing video games was not associated with physical activity. Computer time for academic purposes was positively associated with physical activity. In conclusion, the time spent using the computer for leisure and for studies is positively associated with the practice of physical activities among adolescents from high schools in the city of Tocantinópolis/TO.