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 .
Effects of a school-based weight maintenance program for Mexican-American children: results at 2 years.
The prevalence of childhood overweight has increased significantly , with the highest rates noted among Mexican Americans . Many negative health outcomes are associated with overweight ; thus , there is a need for effective weight-loss interventions tailored to this group . This study evaluated 24-month outcomes of a r and omized , controlled trial involving an intensive lifestyle-based weight maintenance program targeting overweight Mexican-American children at a charter school in Houston , Texas . A total of 60 children ( 33 males , 55 % ) between the ages of 10 and 14 at or > 85th percentile for BMI were recruited . Participants were r and omized to an instructor-led intervention ( ILI ) or a self-help ( SH ) program , both aim ed at modifying eating and physical activity behaviors using behavior modification strategies . Changes in participants ' st and ardized BMI ( z BMI ) were assessed at baseline , 1 , and 2 years . Tricep skinfold , total cholesterol , triglycerides , high-density lipoprotein cholesterol , and calculated low-density lipoprotein were assessed at baseline and 1 year . ILI participants showed significantly greater decreases in z BMI at 1 and 2 years ( F = 26.8 , P < 0.001 , F = 4.1 , P < 0.05 , respectively ) compared to SH controls . ILI participants showed greater improvements in body composition , as measured by tricep skinfold ( F = 9.75 , P < 0.01 ) . Children in the ILI condition experienced benefits with respect to total cholesterol ( F = 7.19 , P < 0.05 ) and triglycerides ( F = 4.35 , P < 0.05 ) compared to children in the SH condition . Overall , the school-based intervention result ed in improved weight and clinical outcomes in overweight Mexican-American children , and z BMI was maintained over 2 years
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 .