Involvement in sedentary activities and academic performance in adolescents: differences according to sociodemographic variables / Implicación en actividades sedentarias y rendimiento académico en adolescentes: diferencias según variables sociodemográficas

Abstract

Abstract This study provides a first-time analysis of the differences in the time dedicated each day to different sedentary activities (SA) (productive, technology-based recreation and social activities) and their relation with the academic performance of Spanish adolescents according to sex, school year and socioeconomic status (SES). The sample was made up of 681 participants (50.2% girls), between 12 and 18 years old, who completed self-reported questionnaires. The likelihood of obtaining lower levels of academic success increase in adolescents who spend two or more hours on social SAs and have a lower SES. With boys, this increases further if they spend four or more hours on SAs involving technology-based recreation and two or less hours on productive SAs. In conclusion, adolescents spend a high number of hours carrying out sedentary activities after school. This is something that needs controlling since it may have a detrimental effect on their academic success, especially among adolescent boys.