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Effect and cost of an after-school dance programme on the physical activity of 11-12 year old girls: The Bristol Girls Dance Project, a school-based cluster randomised controlled trial

Jago, Russell; Edwards, Mark J.; Sebire, Simon J.; Tomkinson, Keeley; Bird, Emma; Banfield, Kathryn; May, Thomas; Kesten, Joanna M.; Cooper, Ashley R.; Powell, Jane; Blair, Peter S.

Effect and cost of an after-school dance programme on the physical activity of 11-12 year old girls: The Bristol Girls Dance Project, a school-based cluster randomised controlled trial Thumbnail


Authors

Russell Jago

Mark J. Edwards

Simon J. Sebire

Keeley Tomkinson

Emma Bird Emma.Bird@uwe.ac.uk
Senior Lecturer in Public Health

Kathryn Banfield

Thomas May

Joanna M. Kesten

Ashley R. Cooper

Jane Powell Jane.Powell@uwe.ac.uk
Professor in Public Health Economics

Peter S. Blair



Abstract

© 2015 Jago et al. Background: The aim of this study was to examine the effectiveness and cost of an after-school dance intervention at increasing the physical activity levels of Year 7 girls (age 11-12). Methods: A cluster randomised controlled trial was conducted in 18 secondary schools. Participants were Year 7 girls attending a study school. The Bristol Girls Dance Project (BGDP) intervention consisted of up to forty, 75-minute dance sessions delivered in the period immediately after school by experienced dance instructors over 20-weeks. The pre-specified primary outcome was accelerometer assessed mean minutes of weekday moderate to vigorous physical activity (MVPA) at time 2 (52weeks are T0 baseline assessments). Secondary outcomes included accelerometer assessed mean minutes of weekday MVPA at time 1 (while the intervention was still running) and psychosocial outcomes. Intervention costs were assessed. Results: 571 girls participated. Valid accelerometer data were collected from 549 girls at baseline with 508 girls providing valid accelerometer data at baseline and time 2. There were no differences between the intervention and control group for accelerometer assessed physical activity at either time 1 or time 2. Only one third of the girls in the intervention arm met the pre-set adherence criteria of attending two thirds of the dance sessions that were available to them. Instrumental variable regression analyses using complier average causal effects provided no evidence of a difference between girls who attended the sessions and the control group. The average cost of the intervention was £73 per girl, which was reduced to £63 when dance instructor travel expenses were excluded. Conclusion: This trial showed no evidence that an after-school dance programme can increase the physical activity of Year 7 girls. The trial highlighted the difficulty encountered in maintaining attendance in physical activity programmes delivered in secondary schools. There is a need to find new ways to help adolescent girls to be physically active via identifying ways to support and encourage sustained engagement in physical activity over the life course. Trial registration: ISRCTN52882523

Journal Article Type Article
Publication Date Oct 6, 2015
Journal International Journal of Behavioral Nutrition and Physical Activity
Electronic ISSN 1479-5868
Publisher BMC
Peer Reviewed Peer Reviewed
Volume 12
Issue 1
Pages 128
Institution Citation Powell, J. E., Jago, R., Edwards, M. J., Sebire, S. J., Tomkinson, K., Bird, E., …Blair, P. S. (2015). Effect and cost of an after-school dance programme on the physical activity of 11-12 year old girls: The Bristol Girls Dance Project, a school-based cluster randomised controlled trial. International Journal of Behavioral Nutrition and Physical Activity, 12(1), 128. https://doi.org/10.1186/s12966-015-0289-y
DOI https://doi.org/10.1186/s12966-015-0289-y
Keywords physical activity, cluster, RCT, girls school
Publisher URL http://dx.doi.org/10.1186/s12966-015-0289-y

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