title: A participatory parent-focused intervention promoting physical activity in preschools: design of a cluster-randomized trial creator: De Bock, Freia creator: Fischer, Joachim E. creator: Hoffmann, Kristina creator: Renz-Polster, Herbert subject: ddc-610 subject: 610 Medical sciences Medicine description: Background: With rates of childhood obesity increasing, physical activity (PA) promotion especially in young children has assumed greater importance. Given the limited effectiveness of most interventions to date, new approaches are needed. The General Systems theory suggests that involving parents as intervention targets may be effective in fostering healthier life styles in children. We describe the development of a parent-focused participatory intervention and the procedures used to evaluate its effectiveness in increasing daily PA in preschoolers. Methods/Design: Thirty-seven South German preschools were identified for this study and agreed to participate. Using a two-armed, controlled cluster-randomized trial design we test a participatory intervention with parents as the primary target group and potential agents of behavioural change. Specifically, the intervention is designed to engage parents in the development, refinement and selection of project ideas to promote PA and in incorporating these ideas into daily routines within the preschool community, consisting of children, teachers and parents. Our study is embedded within an existing state-sponsored programme providing structured gym lessons to preschool children. Thus, child-based PA outcomes from the study arm with the parent-focused intervention and the state-sponsored programme are compared with those from the study arm with the state-sponsored programme alone. The evaluation entails baseline measurements of study outcomes as well as follow-up measurements at 6 and 12 months. Accelerometry measures PA intensity over a period of six days, with the mean over six days used as the primary outcome measure. Secondary outcomes include childrens' BMI, a sum of averaged skin fold thickness measurements across multiple sites, and PA behaviour. Longitudinal multilevel models are used to assess within-subject change and between-group differences in study outcomes, adjusted for covariates at the preschool and individual levels. Teacher qualitative interviews monitor the intervention implementation process. Discussion: Participatory approaches that actively involve parents have the potential to promote PA in ways that might be better tailored to local needs and more sustainable. Our mixed methods approach to assess the intervention efficacy and implementation employing both quantitative and qualitative measures within a cluster-randomized controlled trial may serve as a framework for evaluating public health interventions in preschool settings. Trial Registration: clinicaltrials.gov No: NCT00987532 publisher: BioMed Central date: 2010 type: Article type: info:eu-repo/semantics/article type: NonPeerReviewed format: application/pdf identifier: https://archiv.ub.uni-heidelberg.de/volltextserverhttps://archiv.ub.uni-heidelberg.de/volltextserver/21769/1/12889_2009_Article_1960.pdf identifier: DOI: identifier: urn:nbn:de:bsz:16-heidok-217692 identifier: De Bock, Freia ; Fischer, Joachim E. ; Hoffmann, Kristina ; Renz-Polster, Herbert (2010) A participatory parent-focused intervention promoting physical activity in preschools: design of a cluster-randomized trial. BMC Public Health, 10 (49). pp. 1-13. ISSN 1471-2458 relation: https://archiv.ub.uni-heidelberg.de/volltextserver/21769/ rights: info:eu-repo/semantics/openAccess rights: Please see front page of the work (Sorry, Dublin Core plugin does not recognise license id) language: eng