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 .
Randomized controlled trial of the Physical Activity Leaders (PALs) program for adolescent boys from disadvantaged secondary schools.
OBJECTIVE The aim of this study was to evaluate the efficacy and feasibility of the Physical Activity Leaders ( PALs ) program . PALs is an obesity prevention program for low-active adolescent boys from disadvantaged schools . METHODS The study was conducted in the Hunter Region , New South Wales ( NSW ) , Australia from June to December 2009 . Four disadvantaged secondary schools were r and omized to treatment conditions for the 6-month study period . Participants were 100 adolescent boys [ mean ( SD ) age=14.3(0.6 ) years ; BMI = 22.1 kg/m(-2 ) ( 4.6 ) ; BMI z-score=0.6 ( 1.2 ) ] . The primary outcome was change in BMI and secondary outcomes were body fat ( bioelectrical impedance analysis ) , waist circumference , muscular fitness ( leg dynamometer , 90º push-up test and 7-stage sit-up test ) , physical activity ( 5-days of pedometry ) and selected dietary behaviors . RESULTS Significant group-by-time interaction effects were found for BMI ( mean difference=-0.8 kg/m(-2 ) , p<0.001 , d = 0.7 ) , BMI z-score ( mean difference=-0.2 , p<0.001 , d=0.7 ) , and body fat ( mean difference=-1.8 % , p<0.05 , d=0.5 ) , but not for waist circumference , muscular fitness or physical activity . Participants in the intervention group reduced their consumption of sugar-containing beverages . CONCLUSIONS The PALs program was a feasible and efficacious approach to induce healthy weight loss in adolescent boys from disadvantaged secondary schools
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 .