Results Physical activity was associated with numerous health benefits .
The dose-response relations observed in observational studies indicate that the more physical activity , the greater the health benefit .
Results from experimental studies indicate that even modest amounts of physical activity can have health benefits in high-risk youngsters ( e.g. , obese ) .
Vigorous intensity activities may provide even greater benefit .
Aerobic-based activities had the greatest health benefit , other than for bone health , in which case high-impact weight bearing activities were required .
Some of the health benefits can be achieved through an average of 30 minutes per day . [
Level 2 , Grade A ] .
Background The purpose was to : 1 ) perform a systematic review of studies examining the relation between physical activity , fitness , and health in school-aged children and youth , and 2 ) make recommendations based on the findings .
Prevalence of risk for type 2 diabetes in school children.
According to the Centers for Disease Control and Prevention , 1 in 3 children born in 2000 in the United States will become diabetic . The odds are higher for African American and Hispanic children as nearly 50 % of them will develop diabetes . R and om screening is not effective in identifying children at risk for type 2 diabetes mellitus ( T2DM )  ; therefore , there is a need to apply screening strategies that guide the development of appropriate primary prevention efforts . To assess the prevalence of risk factors for T2DM , 1066 fifth- grade children were screened using American Diabetes Association guidelines . Overall , 22.6 % were found at risk ; African American and Hispanic children were almost 8 times more likely to be at risk when compared to Caucasians ( odds ratio = 7.41 and 7.87 ) . Children who reported watching TV/playing video games 2 or more hours/day were 73 % more likely to be at risk . Children identified to be at risk were referred to their primary care provider and were invited to participate in a counseling session . The environmental risk factors for T2DM identified in this study are modifiable and should be targeted in preventive interventions at the school and community level to reduce overweight and consequently prevent T2DM in children , especially among minority children
Results Physical activity was associated with numerous health benefits .
The dose-response relations observed in observational studies indicate that the more physical activity , the greater the health benefit .
Results from experimental studies indicate that even modest amounts of physical activity can have health benefits in high-risk youngsters ( e.g. , obese ) .
Vigorous intensity activities may provide even greater benefit .
Aerobic-based activities had the greatest health benefit , other than for bone health , in which case high-impact weight bearing activities were required .
Some of the health benefits can be achieved through an average of 30 minutes per day . [
Level 2 , Grade A ] .
Background The purpose was to : 1 ) perform a systematic review of studies examining the relation between physical activity , fitness , and health in school-aged children and youth , and 2 ) make recommendations based on the findings .