Type and quantity of physical activity and screen based activities of students from the 7th to the 12th grades: Characterization and association

Abstract

AimTo examine the association between self-reported physical activity and self-reported screen based time. Materials and methods969 high school students filled in a questionnaire on physical activity and screen based activities. Correlation analysis between time spent in moderate/vigorous physical activities and time spent in screen based activities were performed. ResultsNo association was found between physical activity and time spent watching TV, playing or using computers. A low correlation was found between time using mobile phones and time spent performing moderate physical activities (r=0.09, p<0.05), and vigorous physical activities (r=0.13, p<0.05). ConclusionsThese findings suggest that screen time is not displacing physical activity.