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 .
The Power Play! Campaign's School Idea & Resource Kits improve determinants of fruit and vegetable intake and physical activity among fourth- and fifth-grade children.
OBJECTIVE Examine the effect of the  California Children 's Power Play ! Campaign 's School Idea & Re source Kits for fourth/fifth grade s on the psychosocial determinants of fruit and vegetable ( FV ) intake and  physical activity ( PA ) . METHODS R and omized , controlled trial ( n = 31 low-re source public schools ; 1,154 children ) .  Ten grade -specific , 50-minute nutrition and PA lessons over an 8-week period . Pre/post surveys measuring knowledge , outcome expectations , and self-efficacy ( SE ) were analyzed using analysis of covariance , controlling for baseline values ; chi-square comparing positive/negative changes , adjusted for cluster design effects . RESULTS Intervention children made significant gains for FV knowledge ( 4 items , P < .05 to P < .001 ) ; positive outcome expectations ( fifth grade only , P < .001 ) ; asking/shopping and eating SE ( P = .04 and P < .001 ) ; PA knowledge ( 2 items , P < .01 to P < .001 ) ; outcome expectations ( P < .05 ) ; and support seeking SE ( P = .04 ) ; but not SE to overcome barriers . CONCLUSIONS AND IMPLICATION S The Power Play ! Campaign 's School Idea & Re source Kits improved the determinants of FV intake and PA
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 .