There was some evidence that school-based physical activity interventions had a positive impact on four of the nine outcome measures .
Specifically positive effects were observed for duration of physical activity , television viewing , VO2 max , and blood cholesterol .
Generally , school-based interventions had little effect on physical activity rates , systolic and diastolic blood pressure , BMI , and pulse rate .
At a minimum , a combination of printed educational material s and changes to the school curriculum that promote physical activity result ed in positive effects .
Few changes in outcomes were observed in this up date with the exception of blood cholesterol and physical activity rates .
For example blood cholesterol was no longer positively impacted upon by school-based physical activity interventions .
The evidence suggests the ongoing implementation of school-based physical activity interventions at this time , given the positive effects on behavior and one physical health status measure .
BACKGROUND The World Health Organization ( WHO ) estimates that 1.9 million deaths worldwide are attributable to physical inactivity and at least 2.6 million deaths are a result of being overweight or obese .
In addition , WHO estimates that physical inactivity causes 10 % to 16 % of cases each of breast cancer , colon , and rectal cancers as well as type 2 diabetes , and 22 % of coronary heart disease and the burden of these and other chronic diseases has rapidly increased in recent decades .
OBJECTIVES The purpose of this systematic review was to summarize the evidence of the effectiveness of school-based interventions in promoting physical activity and fitness in children and adolescents .
Randomised controlled trial adapting US school obesity prevention to England
Objectives : To determine whether a  school obesity prevention project developed in the United States can be adapted for use in Engl and . Methods : A pilot cluster r and omised controlled trial and interviews with teachers were carried out in 19 primary schools in South West Engl and . Participants included 679 children in year 5 ( age 9–10 ) . Baseline and follow-up assessment s were completed for 323 children ( screen viewing ) and 472 children ( body mass index ) .  Sixteen lessons on healthy eating , physical activity and reducing TV viewing were taught over 5 months by teachers . Main outcome measures were hours of screen activities , body mass index , mode of transport to school and teachers ’ views of the intervention . Results : Children from intervention schools spent less time on screen-viewing activities after the intervention but these differences were imprecisely estimated : mean difference in minutes spent on screen viewing at the end of the intervention ( intervention schools minus control schools ) adjusted for baseline levels and clustering within schools was −11.6 ( 95 % CI −42.7 to 19.4 ) for a week day and was −15.4 ( 95 % CI −57.5 to 26.8 ) for a Saturday . There was no difference in mean body mass index or the odds of obesity . Conclusions : It is feasible to transfer this US school-based intervention to UK schools , and it may be effective in reducing the time children spend on screen-based activities . The study has provided information for a full-scale trial , which would require 50 schools ( ∼1250 pupils ) to detect effects on screen viewing and body mass index over 2 years of follow-up
There was some evidence that school-based physical activity interventions had a positive impact on four of the nine outcome measures .
Specifically positive effects were observed for duration of physical activity , television viewing , VO2 max , and blood cholesterol .
Generally , school-based interventions had little effect on physical activity rates , systolic and diastolic blood pressure , BMI , and pulse rate .
At a minimum , a combination of printed educational material s and changes to the school curriculum that promote physical activity result ed in positive effects .
Few changes in outcomes were observed in this up date with the exception of blood cholesterol and physical activity rates .
For example blood cholesterol was no longer positively impacted upon by school-based physical activity interventions .
The evidence suggests the ongoing implementation of school-based physical activity interventions at this time , given the positive effects on behavior and one physical health status measure .
BACKGROUND The World Health Organization ( WHO ) estimates that 1.9 million deaths worldwide are attributable to physical inactivity and at least 2.6 million deaths are a result of being overweight or obese .
In addition , WHO estimates that physical inactivity causes 10 % to 16 % of cases each of breast cancer , colon , and rectal cancers as well as type 2 diabetes , and 22 % of coronary heart disease and the burden of these and other chronic diseases has rapidly increased in recent decades .
OBJECTIVES The purpose of this systematic review was to summarize the evidence of the effectiveness of school-based interventions in promoting physical activity and fitness in children and adolescents .