Affective Judgment and Physical Activity in Youth: Review and Meta-Analyses
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ORIGINAL ARTICLE
Affective Judgment and Physical Activity in Youth: Review and Meta-Analyses Gabriella Nasuti, M.Sc. & Ryan E. Rhodes, Ph.D.
Published online: 8 January 2013 # The Society of Behavioral Medicine 2013
Abstract Background A recent meta-analysis on affective judgment and physical activity in adults yielded a medium effect-sized relationship. Despite narrative reviews and topic interest, a meta-analysis in youth has not yet been conducted. Purpose This study aims to appraise the overall effect of affective judgment on physical activity in youth via metaanalyses and explore moderators of this relationship. Methods Literature searches were conducted between 1990 and 2011. Fixed and random effects meta-analysis with correction for sampling, measurement, and publication bias were employed. Results Fifty-six correlational studies and 14 interventions met the inclusion criteria. Among correlational studies, the corrected summary r was 0.26 (95 % CI 0.18–0.32). Significant moderators were gender, measure of physical activity, and recruitment context. Among intervention studies, Cohen’s d was 0.25 (95 % CI 0.11–0.40). Conclusions The results are close to a medium effect size which is larger than other meta-analytic physical activity correlates among youth. The construct should be included in our contemporary theories for understanding and intervening upon youth physical activity.
Electronic supplementary material The online version of this article (doi:10.1007/s12160-012-9462-6) contains supplementary material, which is available to authorized users. G. Nasuti : R. E. Rhodes Behavioral Medicine Laboratory, School of Exercise Science, Physical & Health Education, University of Victoria, Victoria, BC, Canada G. Nasuti (*) Behavioural Medicine Laboratory, Faculty of Education, University of Victoria, PO Box 3015 STN CSC, Victoria, BC V8W 3P1, Canada e-mail: [email protected]
Keywords Affective judgment . Enjoyment . Youth . Physical activity . Meta-analysis . Review
Introduction The benefits of regular physical activity in youth have been well documented and are plenty including reduced levels of adiposity, blood pressure and lipids, cardiovascular risk factors, injury, and mental health concerns like depression; increased bone health; and strength and fitness outcomes [1–3]. Unfortunately, only a small fragment of Canadian and US youth are engaging in levels of physical activity that would bring about health benefits and are meeting current physical activity guidelines [4–6]. These guidelines recommend that children and youth perform a minimum of 60 min of moderate to vigorous physical activity every day, vigorous intensity activities at least 3 days a week, and bone strengthening activities at least 3 days a week [7, 8]. Given the many benefits, the low levels of activity, and that physical activity tracks reasonably well from childhood to adolescence and into adulthood [9], promoting regular physical activity in children is an important public health concern. When devising physical activity interventions, it
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