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Associations between sedentary behaviours and dietary intakes among adolescents


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Fletcher, EA, McNaughton, SA, Crawford, D, Cleland, V ORCID: 0000-0001-8358-3237, Della Gatta, J, Hatt, J, Dollman, J and Timperio, A 2018 , 'Associations between sedentary behaviours and dietary intakes among adolescents' , Public Health Nutrition, vol. 21, no. 6 , pp. 1115-1122 , doi: 10.1017/S136898001700372X.

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Objective: The purpose of the current study was to examine associations of individual and aggregated screen-based behaviours, and total sitting time, with healthy and unhealthy dietary intakes among adolescents.Design: Cross-sectional study of adolescents. Participants self-reported durations of television viewing, computer use, playing electronic games (e-games), total sitting time, daily servings of fruits and vegetables, and frequency of consumption of sugar-sweetened beverages (SSB), diet beverages, fast foods and discretionary snacks. Logistic regression models were conducted to identify associations of screen-based behaviours, total screen time and total sitting time with dietary intakes.Setting: Victoria, Australia.Subjects: Adolescents (n 939) in School Year 11 (mean age 16·8 years).Results: The results showed that watching television (≥2 h/d) was positively associated with consuming SSB and diet beverages each week and consuming discretionary snacks at least once daily, whereas computer use (≥2 h/d) was inversely associated with daily fruit and vegetable intake and positively associated with weekly fast-food consumption. Playing e-games (any) was inversely associated with daily vegetable intake and positively associated with weekly SSB consumption. Total screen (≥2 h/d) and sitting (h/d) times were inversely associated with daily fruit and vegetable consumption, with total screen time also positively associated with daily discretionary snack consumption and weekly consumption of SSB and fast foods.Conclusions: Individual and aggregated screen-based behaviours, as well as total sitting time, are associated with a number of indicators of healthy and unhealthy dietary intake. Future research should explore whether reducing recreational screen time improves adolescents' diets.

Item Type: Article
Authors/Creators:Fletcher, EA and McNaughton, SA and Crawford, D and Cleland, V and Della Gatta, J and Hatt, J and Dollman, J and Timperio, A
Keywords: adolescents, diet, screen time, sitting, snacks, television viewing
Journal or Publication Title: Public Health Nutrition
Publisher: CABI Publishing
ISSN: 1368-9800
DOI / ID Number: 10.1017/S136898001700372X
Copyright Information:

© 2018 The Authors. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0)

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