%0 Journal Article
%T Primary prevention of overweight in children and adolescents: a meta-analysis of the effectiveness of interventions aiming to decrease sedentary behaviour
%A Amy van Grieken
%A Nicole PM Ezendam
%A Winifred D Paulis
%A Johannes C van der Wouden
%A Hein Raat
%J International Journal of Behavioral Nutrition and Physical Activity
%D 2012
%I BioMed Central
%R 10.1186/1479-5868-9-61
%X A literature search was conducted in PubMed, EMBASE, Web of Science, PsycINFO and Cochrane Database of Systematic Reviews. Thirty-four (R)CT studies evaluating 33 general population interventions, published between 1990 and April 2011, aiming to decrease sedentary behaviour in normal weight children or adolescents (0每18ˋyears) were included. Intervention duration ranged from 7ˋdays to 4ˋyears. Mean change in sedentary behaviour and BMI from baseline to post-intervention was calculated using a random effects model.Results showed significant decreases for the amount of sedentary behaviour and BMI. For sedentary behaviour the post-intervention mean difference was ˋ17.95ˋmin/day (95%CI:-26.61;每9.28); the change-from-baseline mean difference was ˋ20.44ˋmin/day (95%CI:-30.69;每10.20). For BMI the post-intervention mean difference was ˋ0.25ˋkg/m2 (95%CI:-0.40;每0.09); the change-from-baseline mean difference was ˋ0.14ˋkg/m2 (95%CI:-0.23;每0.05). No differences were found between single and multiple health behaviour interventions.Interventions in the school- and general population setting aiming to reduce only sedentary behaviour and interventions targeting multiple health behaviours can result in significant decreases in sedentary behaviour. Studies need to increase follow-up time to estimate the sustainability of the intervention effects found.
%K Sedentary behaviour
%K Intervention
%K Overweight prevention
%K Children
%K General population
%U http://www.ijbnpa.org/content/9/1/61/abstract