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Abstract

Background: The behavioral pathways through which television
(TV) viewing leads to increased adiposity in adults are unclear.
Objective: We wanted to determine whether the association between TV viewing and abdominal obesity in young adults is mediated by food and beverage consumption during TV viewing time or by a reduction in overall leisure-time physical activity (LTPA).
Design: This study involved a cross-sectional analysis of data from 2001 Australian adults aged 26–36 y. Waist circumference (WC) was measured at study clinics, and TV viewing time, frequency of food and beverage consumption during TV viewing, LTPA, and demographic characteristics were self-reported.
Results: Women watching TV >3 h/d had a higher prevalence of
severe abdominal obesity (WC: >=88 cm) compared with women
watching <=1 h/d [prevalence ratio (PR): 1.89; 95% CI: 1.32, 2.71].
Moderate abdominal obesity (WC: 94–101.9 cm) was more prevalent in men watching TV >=3 h/d than in men watching <=1 h/d (PR: 2.16; 95% CI: 1.37, 3.41). Adjustment for LTPA made little difference, but adjustment for food and beverage consumption during TV viewing attenuated the associations (PR: 1.48;95%CI: 1.01, 2.17 for women; PR: 1.73; 95% CI: 1.06, 2.83 for men).
Conclusions: The association between TV viewing and WC in
young adults may be partially explained by food and beverage consumption during TV viewing but was not explained by a reduction in overall LTPA. Other behaviors likely contribute to the association between TV viewing and obesity.

Item Type:	Article
Authors/Creators:	Cleland, VJ and Schmidt, MD and Dwyer, T and Venn, AJ
Journal or Publication Title:	American Journal of Clinical Nutrition
ISSN:	0002-9165
Additional Information:	Copyright © 2008 by The American Society for Nutrition
Related URLs:	Organisation
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