Associations between screen time and physical activity among Spanish adolescents.

<h4>Background</h4>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 adolescen...

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Autores principales:	Jose A Serrano-Sanchez, Sara Martí-Trujillo, Angela Lera-Navarro, Cecilia Dorado-García, Juan J González-Henríquez, Joaquín Sanchís-Moysi
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2011
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/a54a029c099543d3a8c369b0e449dfbf
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spelling	oai:doaj.org-article:a54a029c099543d3a8c369b0e449dfbf2021-11-18T06:46:49ZAssociations between screen time and physical activity among Spanish adolescents.1932-620310.1371/journal.pone.0024453https://doaj.org/article/a54a029c099543d3a8c369b0e449dfbf2011-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/21909435/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Background</h4>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.<h4>Methodology/principal findings</h4>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.<h4>Conclusions/significance</h4>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.Jose A Serrano-SanchezSara Martí-TrujilloAngela Lera-NavarroCecilia Dorado-GarcíaJuan J González-HenríquezJoaquín Sanchís-MoysiPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 6, Iss 9, p e24453 (2011)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jose A Serrano-Sanchez Sara Martí-Trujillo Angela Lera-Navarro Cecilia Dorado-García Juan J González-Henríquez Joaquín Sanchís-Moysi Associations between screen time and physical activity among Spanish adolescents.
description	<h4>Background</h4>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.<h4>Methodology/principal findings</h4>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.<h4>Conclusions/significance</h4>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.
format	article
author	Jose A Serrano-Sanchez Sara Martí-Trujillo Angela Lera-Navarro Cecilia Dorado-García Juan J González-Henríquez Joaquín Sanchís-Moysi
author_facet	Jose A Serrano-Sanchez Sara Martí-Trujillo Angela Lera-Navarro Cecilia Dorado-García Juan J González-Henríquez Joaquín Sanchís-Moysi
author_sort	Jose A Serrano-Sanchez
title	Associations between screen time and physical activity among Spanish adolescents.
title_short	Associations between screen time and physical activity among Spanish adolescents.
title_full	Associations between screen time and physical activity among Spanish adolescents.
title_fullStr	Associations between screen time and physical activity among Spanish adolescents.
title_full_unstemmed	Associations between screen time and physical activity among Spanish adolescents.
title_sort	associations between screen time and physical activity among spanish adolescents.
publisher	Public Library of Science (PLoS)
publishDate	2011
url	https://doaj.org/article/a54a029c099543d3a8c369b0e449dfbf
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Associations between screen time and physical activity among Spanish adolescents.

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