In conclusion , overweight and obese youth can improve physical fitness across a variety of test measures .
When fitness improves , beneficial health effects are observed in some , but not all chronic disease risk factors
A systematic review of literature was conducted to examine the association between changes in health-related fitness ( e.g. aerobic capacity and muscular strength /endurance ) and chronic disease risk factors in overweight and /or obese youth .
Resistance training and diastolic myocardial tissue velocities in obese children.
PURPOSE The primary purpose of this study was to determine the effects of resistance exercise training on early diastolic myocardial velocities ( E ' ) in an obese pediatric population . METHODS Twenty-three obese adolescents were selected to participate in either a  resistance-based training program ( RT ; n = 13 , 12.2 + /- 0.4 yr , body mass index [ BMI ] = 32.5 + /- 1.9 kg m(-2 ) ) or a nonexercise control intervention ( n = 10 , 13.6 + /- 0.7 yr , BMI = 30.2 + /- 2.6 kg m(-2 ) ) for 8 wk . All subjects had repeated echocardiographic assessment s to determine left ventricular ( LV ) geometry , early transmitral flow velocity ( E ) , and E ' . RESULTS LV mass and wall thicknesses did not significantly change with training or in controls . RT improved E ' ( 11.9 + /- 0.5 to 13.3 + /- 0.5 cm s(-1 ) , P < 0.01 ) in the presence of a decrease in E/E ' ( 8.17 + /- 0.39 to 7.06 + /- 0.30 cm s(-1 ) , P < 0.01 ) , a marker of left atrial pressure . No changes were evident in the inactive control subjects . CONCLUSIONS A supervised 8-wk RT exercise program improved early diastolic tissue velocity in obese children , independent of changes in LV morphology
In conclusion , overweight and obese youth can improve physical fitness across a variety of test measures .
When fitness improves , beneficial health effects are observed in some , but not all chronic disease risk factors
A systematic review of literature was conducted to examine the association between changes in health-related fitness ( e.g. aerobic capacity and muscular strength /endurance ) and chronic disease risk factors in overweight and /or obese youth .