|Title: ||Physical activity and body composition outcomes of the GreatFun2Run intervention at 20 month follow-up|
|Citation: ||International Journal of Behavioral Nutrition and Physical Activity, 8 (1):74|
|Publisher: ||BioMed Central|
|Journal: ||International Journal of Behavioral Nutrition and Physical Activity|
|Issue Date: ||2011 |
|Additional Links: ||http://www.ijbnpa.org/content/8/1/74|
|Abstract: ||Background: Physical inactivity is recognised as a public health concern within children and interventions to
increase physical activity are needed. GreatFun2Run was a school-based healthy lifestyles intervention that showed
positive changes in physical activity levels and body composition immediately post-intervention. The purpose of
this paper was to examine whether these changes in physical activity and body composition were maintained 18-
20 months after the intervention ended.
Method: Participants (n = 589, aged 7-11 yrs) from 4 intervention and 4 control schools took part in the 10-month
intervention, of which 421 (71%) were present for follow-up. The intervention comprised a CD-rom learning and
teaching resource for teachers; an interactive website for pupils, teachers and parents; two highlight physical
activity events (1 mile school runs/walks); a local media campaign; and a summer activity wall planner and record.
Randomisation was not possible because of local media content. Outcome measures were objectively measured
physical activity (pedometers and accelerometers) and body composition variables (body mass index, waist
circumference, estimated percent body fat, and sum of skinfolds). Teacher interviews and participant focus groups
were conducted. Multi-level modelling was employed for the data analysis.
Results: Both control and intervention participants had increased their physical activity at follow-up but there
was no group by time interaction (control: 2726 steps per day increase; intervention 3404 steps per day
increase, p > .05). There were significant increases in estimated percent body fat, sum of skinfolds, waist
circumference and body mass index (BMI) with increasing age. In the control group, there was evidence for a
plateauing in the rate of change in all body composition variables with increasing age, except BMI. In contrast,
significant interaction terms suggest that the rate of change in waist circumference, BMI and BMISDS continued
to increase with age in the intervention group. Teacher interviews suggested that because of time pressures,
competing resources, curriculum demands and staff changes the majority of teachers had not continued to use
Conclusions: While the intervention initially produced positive changes in physical activity levels and body
composition, these changes were not sustained once the intervention ended. Facilitating long-term health
behaviour change in children remains a challenge.|
|Keywords: ||Physical activity|
Long term follow-up
|Appears in Collections: ||Sport, Exercise and Health Research Group|
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