Authors
Simon J Marshall, Stuart JH Biddle, Trish Gorely, Noel Cameron, Ian Murdey
Publication date
2004/10
Source
International journal of obesity
Volume
28
Issue
10
Pages
1238-1246
Publisher
Nature Publishing Group
Description
OBJECTIVE: To review the empirical evidence of associations between television (TV) viewing, video/computer game use and (a) body fatness, and (b) physical activity.
DESIGN: Meta-analysis.
METHOD: Published English-language studies were located from computerized literature searches, bibliographies of primary studies and narrative reviews, and manual searches of personal archives. Included studies presented at least one empirical association between TV viewing, video/computer game use and body fatness or physical activity among samples of children and youth aged 3–18 y.
MAIN OUTCOME MEASURE: The mean sample-weighted corrected effect size (Pearson r).
RESULTS: Based on data from 52 independent samples, the mean sample-weighted effect size between TV viewing and body fatness was 0.066 (95% CI= 0.056–0.078; total N= 44 707). The sample-weighted fully corrected effect size was 0 …
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SJ Marshall, SJH Biddle, T Gorely, N Cameron… - International journal of obesity, 2004