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 12-week exercise training programme on aerobic fitness, body composition, blood lipids and C-reactive protein in adolescents with obesity.
INTRODUCTION Developing effective exercise programmes for the paediatric population is a strategy for decreasing obesity and is expected to help in eventually limiting obesity-associated long-term health and societal impact . In this study , the effects of a 12-week twice weekly additional exercise training , which comprised a combination of circuit-based resistance training and aerobic exercises , in additional to typical physical education sessions , on aerobic fitness , body composition and serum C-reactive protein ( CRP ) and lipids were analysed in 13- to 14-year-old obese boys contrasted with a control group . MATERIAL S AND METHODS Both the exercise group ( EG , n = 12 ) and control group ( CG , n = 12 ) participated in the typical 2 sessions of 40-minute physical education ( PE ) per week in schools , but only EG participated in additional 2 sessions per week of 45 to 60 minutes per session of exercise training , which comprised a combination of circuit-based resistance training and aerobic exercises maintained at 65 % to 85 % maximum heart rate ( HRmax = 220 - age ) . Body composition was measured using dual energy X-ray absorptiometry ( DEXA ) . Fasting serum CRP and blood lipids were analysed pre- and postexercise programme . Aerobic fitness was measured by an objective laboratory submaximal exercise test , PWC170 ( Predicted Work Capacity at HR 170 bpm ) . RESULTS Exercise training significantly improved lean muscle mass , body mass index , fitness , resting HR , systolic blood pressure and triglycerides in EG . Serum CRP concentrations were elevated at baseline in both groups , but training did not result in a change in CRP levels . In the CG , body weight increased significantly at the end of the 12-week period . CONCLUSION This study supports the value of an additional exercise training programme , beyond the typical twice weekly physical education classes , to produce physiological benefits in the management of obesity in adolescents , including prevention of weight gain
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 .