Physical activity to prevent obesity in young children: cluster randomised controlled trial

doi:10.1136/bmj.38979.623773.55

BMJ, doi: 10.1136/bmj.38979.623773.55, (Published 6 October 2006)

RESEARCH

Physical activity to prevent obesity in young children: cluster randomised controlled trial

John J Reilly ¹^*, Louise Kelly ¹, Colette Montgomery ¹, Avril Williamson ², Abigail Fisher ¹, John H McColl ³, Rossella Lo Conte ³, James Y Paton ¹, Stanley Grant ⁴

¹ Division of Developmental Medicine, University of Glasgow, Yorkhill Hospitals, Glasgow G3 8SJ
² Glasgow City Council Education Department, Merchant City, Glasgow G1 1HL
³ Department of Statistics, University of Glasgow, Glasgow G12 8QQ
⁴ University of Glasgow Faculty of Biomedical and Life Sciences, West Medical Building, Glasgow G12 8QQ

^* Correspondence to: jjr2y{at}clinmed.gla.ac.uk.

Objective To assess whether a physical activity interventionreduces body mass index in young children.

Design Cluster randomisedcontrolled single blinded trial over 12 months.

Setting Thirtysix nurseries in Glasgow, Scotland.

Participants 545 childrenin their preschool year, mean age 4.2 years (SD 0.2) at baseline.

InterventionEnhanced physical activity programme in nursery (three 30 minutesessions a week over 24 weeks) plus home based health educationaimed at increasing physical activity through play and reducingsedentary behaviour.

Main outcome measure Body mass index, expressedas a standard deviation score relative to UK 1990 referencedata. Secondary measures were objectively measured physicalactivity and sedentary behaviour; fundamental movement skills;and evaluation of the process.

Results Group allocation had nosignificant effect on the primary outcome measure at six and12 months or on measures of physical activity and sedentarybehaviour by accelerometry. Children in the intervention grouphad significantly higher performance in movement skills teststhan control children at six month follow-up (P=0.0027; 95%confidence interval 0.3 to 1.3) after adjustment for sex andbaseline performance.

Conclusions Physical activity can significantlyimprove motor skills but did not reduce body mass index in youngchildren in this trial.

Trial registration Current ControlledTrials ISRCTN36363490.

(Accepted 24 August 2006)

CiteULike

Complore

Connotea

Del.icio.us Add to Digg

Digg

StumbleUpon Add to Technorati

Technorati What's this?

Relevant Articles

Physical activity to prevent obesity in young children: Negative outcome or protocol problem?: Alastair Michell
BMJ 2006 333: 1171. [Extract] [Full Text] [PDF]

Physical activity to prevent obesity in young children: BMI in the BMJ: Daniel J Green and Tim Cable
BMJ 2006 333: 1171. [Extract] [Full Text] [PDF]

Physical activity to prevent obesity in young children: Dietary and behavioural modifications in managing childhood obesity: S Kapoor
BMJ 2006 333: 1171. [Extract] [Full Text] [PDF]

Physical activity does not alter children's BMI
BMJ 2006 333: 0. [Full Text] [PDF]

US Highlights: Douglas Kamerow
BMJ 2006 333: 0. [Extract] [Full Text] [PDF]

Tackling childhood obesity: Requires a shift in social norms, not just an exercise programme: Antronette Yancey
BMJ 2006 333: 1031-1032. [Extract] [Full Text] [PDF]

CONSORT statement: extension to cluster randomised trials: Marion K Campbell, Diana R Elbourne, and Douglas G Altman
BMJ 2004 328: 702-708. [Extract] [Full Text] [PDF]

Randomised controlled trial of primary school based intervention to reduce risk factors for obesity: Pinki Sahota, Mary C J Rudolf, Rachael Dixey, Andrew J Hill, Julian H Barth, and Janet Cade
BMJ 2001 323: 1029. [Abstract] [Full Text] [PDF]

This article has been cited by other articles:

Sedgwick, P. (2009). Study design. BMJ 339: b4458-b4458 [Full text]
Riethmuller, A. M., Jones, R. A., Okely, A. D. (2009). Efficacy of Interventions to Improve Motor Development in Young Children: A Systematic Review. Pediatrics 124: e782-e792 [Abstract] [Full text]
Brown, W. H., Googe, H. S., McIver, K. L., Rathel, J. M. (2009). Effects of Teacher-Encouraged Physical Activity on Preschool Playgrounds. Journal of Early Intervention 31: 126-145 [Abstract]
Taylor, R. W, McAuley, K. A, Barbezat, W., Farmer, V. L, Williams, S. M, Mann, J. I (2008). Two-year follow-up of an obesity prevention initiative in children: the APPLE project. Am. J. Clin. Nutr. 88: 1371-1377 [Abstract] [Full text]
Chiolero, A., Maximova, K., Paradis, G. (2008). Changes in BMI: An Important Metric for Obesity Prevention. Pediatrics 122: 683-683 [Full text]
Kumanyika, S. K., Obarzanek, E., Stettler, N., Bell, R., Field, A. E., Fortmann, S. P., Franklin, B. A., Gillman, M. W., Lewis, C. E., Poston, W. C. II, Stevens, J., Hong, Y. (2008). Population-Based Prevention of Obesity: The Need for Comprehensive Promotion of Healthful Eating, Physical Activity, and Energy Balance: A Scientific Statement From American Heart Association Council on Epidemiology and Prevention, Interdisciplinary Committee for Prevention (Formerly the Expert Panel on Population and Prevention Science). Circulation 118: 428-464 [Abstract] [Full text]
Reilly, J J, Penpraze, V, Hislop, J, Davies, G, Grant, S, Paton, J Y (2008). Objective measurement of physical activity and sedentary behaviour: review with new data. Arch. Dis. Child. 93: 614-619 [Abstract] [Full text]
Taylor, R. W, McAuley, K. A, Barbezat, W., Strong, A., Williams, S. M, Mann, J. I (2007). APPLE Project: 2-y findings of a community-based obesity prevention program in primary school age children. Am. J. Clin. Nutr. 86: 735-742 [Abstract] [Full text]
Sriraman, N. K. (2007). Does Physical Activity in Preschools Lower BMI?. AAP Grand Rounds 17: 27-28 [Full text]
(2007). Other articles noted. Evid. Based Med. 12: 31-32 [Full text]
Michell, A. (2006). Physical activity to prevent obesity in young children: Negative outcome or protocol problem?. BMJ 333: 1171-1171 [Full text]
Green, D. J, Cable, T. (2006). Physical activity to prevent obesity in young children: BMI in the BMJ. BMJ 333: 1171-1171 [Full text]
Kapoor, S (2006). Physical activity to prevent obesity in young children: Dietary and behavioural modifications in managing childhood obesity. BMJ 333: 1171-1171 [Full text]

Rapid Responses:

Read all Rapid Responses

The important role of life style: Ada Majd
bmj.com, 11 Oct 2006 [Full text]
BMI in the BMJ: Daniel J Green, et al.
bmj.com, 12 Oct 2006 [Full text]
Childhood Obesity and Physical Activity - a National Campaign: Seyed Hamid Reza Naghavi MD
bmj.com, 13 Oct 2006 [Full text]
The Activitystat Hypothesis: Terence J Wilkin, et al.
bmj.com, 15 Oct 2006 [Full text]
Re: The Activitystat Hypothesis: David Bossano
bmj.com, 16 Oct 2006 [Full text]
Negative outcome or protocol problem ?: Alastair Michell
bmj.com, 1 Nov 2006 [Full text]
Childhood obesity prevention - What could be the winning formula?: Somasundari Gopalakrishnan, et al.
bmj.com, 8 Nov 2006 [Full text]
Physical activity to prevent obesity: author's reply: John J Reilly, et al.
bmj.com, 15 Nov 2006 [Full text]
Unsuccessful intervention is not the same as a negative outcome: Alastair R Michell
bmj.com, 15 Nov 2006 [Full text]
Change in BMI is not a measure of change in obesity: Louise Parker
bmj.com, 18 Nov 2006 [Full text]
Proves that single-interventions are not very fruitful: Allen P Ugargol
bmj.com, 20 Nov 2006 [Full text]
Dietary and behavioral modifications in managing childhood obesity: S Kapoor
bmj.com, 21 Nov 2006 [Full text]
Childhood Obesity:..No golden bullet.: Emmanuel Agogo
bmj.com, 21 Nov 2006 [Full text]
Measuring Child Weight Status: Rory O'Conor
bmj.com, 22 Nov 2006 [Full text]
Childhood obesity and gym membership: Ian P Rodd
bmj.com, 22 Nov 2006 [Full text]
Role of dietary modification: Dr. Raghesh varot kangath
bmj.com, 22 Nov 2006 [Full text]
Childhood obesity : Is exercise no good ?: Alka Thakur
bmj.com, 22 Nov 2006 [Full text]