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http://hdl.handle.net/10553/48274
Título: | Associations between screen time and physical activity among spanish adolescents | Autores/as: | Serrano-Sanchez, Jose A. Martí-Trujillo, Sara Lera-Navarro, Angela Dorado-García, Cecilia González-Henríquez, Juan J. Sanchís-Moysi, Joaquín |
Palabras clave: | Sedentary Behavior Risk-Factors Cardiovascular-Disease Activity Questionnaire Childrens Television, et al. |
Fecha de publicación: | 2011 | Publicación seriada: | PLoS ONE | Resumen: | Background: Excessive time in front of a single or several screens could explain a displacement of physical activity. The present study aimed at determining whether screen-time is associated with a reduced level of moderate to vigorous physical activity (MVPA) in Spanish adolescents living in favorable environmental conditions.Methodology/Principal Findings: A multi-stage stratified random sampling method was used to select 3503 adolescents (12-18 years old) from the school population of Gran Canaria, Spain. MVPA, screen-time in front of television, computer, video game console and portable console was assessed in the classroom by fulfilling a standardized questionnaire. Bivariate and multivariate logistic regression analyses adjusted by a set of social-environmental variables were carried out. Forty-six percent of girls (95% CI +/- 2.3%) and 26% of boys (95% CI +/- 2.1%) did not meet the MVPA recommendations for adolescents. Major gender differences were observed in the time devoted to vigorous PA, video games and the total time spent on screen-based activities. Boys who reported 4 hours.week(-1) or more to total screen-time showed a 64% (OR = 0.61, 95% CI, 0.44-0.86) increased risk of failing to achieve the recommended adolescent MVPA level. Participation in organized physical activities and sports competitions were more strongly associated with MVPA than screen-related behaviors.Conclusions/Significance: No single screen-related behavior explained the reduction of MVPA in adolescents. However, the total time accumulated through several screen-related behaviors was negatively associated with MVPA level in boys. This association could be due to lower availability of time for exercise as the time devoted to sedentary screen-time activities increases. Participation in organized physical activities seems to counteract the negative impact of excessive time in front of screens on physical activity. | URI: | http://hdl.handle.net/10553/48274 | ISSN: | 1932-6203 | DOI: | 10.1371/journal.pone.0024453 | Fuente: | PLoS ONE [ISSN 1932-6203], v. 6 (e24453) |
Colección: | Artículos |
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