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 .
A prospective study of the determinants of physical activity in rural fifth-grade children.
BACKGROUND Underst and ing the factors that influence physical activity behavior is important in the design of intervention programs targeted at youth . METHODS A prospect i ve study design was used to identify the predictors of vigorous physical activity ( VPA ) ( > or = 6 METs ) and moderate and vigorous physical activity ( MVPA ) ( > or = 3 METs ) among 202 rural , predominantly African-American children . Selected social-cognitive determinants of physical activity were assessed via question naire in the fifth grade . Participation in VPA and MVPA was assessed via the previous day physical activity recall 1 year later in the sixth grade . RESULTS For girls , participation in community sports , self-efficacy in overcoming barriers , enjoyment of school physical education , race ( white > black ) , and perception of mother 's activity level ( active vs inactive ) were significant predictors of VPA . For  MVPA , participation in community sports and self-efficacy in overcoming barriers were significant predictors . For boys , self-efficacy in overcoming barriers was the only significant predictor of VPA , while beliefs regarding activity outcomes and participation in community sports were significant predictors of MVPA . CONCLUSION Social-cognitive constructs such as physical activity self-efficacy , access to community physical activity outlets , and positive beliefs regarding physical activity outcomes are important predictors of future physical activity behavior among rural , predominantly African-American children
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 .