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A systematic review of intervention effects on potential mediators of children's physical activity

Brown, Helen, Hume, Clare, Pearson, Natalie and Salmon, Jo 2013, A systematic review of intervention effects on potential mediators of children's physical activity, BMC public health, vol. 13, no. 1, pp. 1-10.

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Title A systematic review of intervention effects on potential mediators of children's physical activity
Author(s) Brown, Helen
Hume, Clare
Pearson, Natalie
Salmon, Jo
Journal name BMC public health
Volume number 13
Issue number 1
Start page 1
End page 10
Total pages 10
Publisher BioMed Central
Place of publication London, England
Publication date 2013
ISSN 1471-2458
Keyword(s) mediator
child
physical activity promotion
theory
Summary Background : Many interventions aiming to increase children’s physical activity have been developed and implemented in a variety of settings, and these interventions have previously been reviewed; however the focus of these reviews tends to be on the intervention effects on physical activity outcomes without consideration of the reasons and pathways leading to intervention success or otherwise.

To systematically review the efficacy of physical activity interventions targeting 5-12 year old children on potential mediators and, where possible, to calculate the size of the intervention effect on the potential mediator.

Methods : A systematic search identified intervention studies that reported outcomes on potential mediators of physical activity among 5-12 year old children. Original research articles published between 1985 and April 2012 were reviewed.

Results : Eighteen potential mediators were identified from 31 studies. Positive effects on cognitive/psychological potential mediators were reported in 15 out of 31 studies. Positive effects on social environmental potential mediators were reported in three out of seven studies, and no effects on the physical environment were reported. Although no studies were identified that performed a mediating analysis, 33 positive intervention effects were found on targeted potential mediators (with effect sizes ranging from small to large) and 73% of the time a positive effect on the physical activity outcome was reported.

Conclusions : Many studies have reported null intervention effects on potential mediators of children’s physical activity; however, it is important that intervention studies statistically examine the mediating effects of interventions so the most effective strategies can be implemented in future programs.
Notes Reproduced with the kind permission of the copyright owner.
Language eng
Field of Research 110699 Human Movement and Sports Science not elsewhere classified
Socio Economic Objective 920401 Behaviour and Health
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2013, BioMed Central
Persistent URL http://hdl.handle.net/10536/DRO/DU:30053485

Document type: Journal Article
Collections: School of Exercise and Nutrition Sciences
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Created: Mon, 08 Jul 2013, 15:36:33 EST by Barb Lavelle

Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.