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 .
Multi-site randomized controlled trial of a child-centered physical activity program, a parent-centered dietary-modification program, or both in overweight children: the HIKCUPS study.
OBJECTIVE To evaluate whether a child-centered physical activity program , combined with a parent-centered dietary program , was more efficacious than each treatment alone , in preventing unhealthy weight-gain  in overweight children . STUDY DESIGN An assessor-blinded r and omized controlled trial involving 165 overweight/obese 5.5- to 9.9- year-old children . Participants were r and omly assigned to 1 of 3 interventions : a parent-centered dietary program ( Diet ) ; a child-centered physical activity program ( Activity ) ; or a combination of both ( Diet+Activity ) . All groups received 10 weekly face-to-face sessions followed by 3 monthly relapse-prevention phone calls . Analysis was by intention-to-treat . The primary outcome was change in body mass index z-score at 6 and 12 months ( n=114 and 106 , respectively ) . RESULTS Body mass index z-scores were reduced at 12-months in all groups , with the Diet ( mean [ 95 % confidence interval ] ) ( -0.39 [ -0.51 to 0.27 ] ) and Diet + Activity ( -0.32 , [ -0.36 , -0.23 ] ) groups showing a greater reduction than the Activity group ( -0.17 [ -0.28 , -0.06 ] ) ( P=.02 ) . Changes in other outcomes ( waist circumference and metabolic profile ) were not statistically significant among groups . CONCLUSION Relative body weight decreased at 6 months and was sustained at 12 months through treatment with a child-centered physical activity program , a parent-centered dietary program , or both . The greatest effect was achieved when a parent-centered dietary component was included
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 .