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 .
Weight loss associated with exercise training restores ventilatory efficiency in obese children.
The purpose of this study was to test the hypothesis that in obese children : 1 ) Ventilatory efficiency ( VentE ) is decreased during grade d exercise ; and 2 ) Weight loss through diet alone ( D ) improves VentE , and 3 ) diet associated with exercise training ( DET ) leads to greater improvement in VentE than by D. Thirty-eight obese children ( 10+/-0.2 years ; BMI > 95th percentile ) were r and omly divided into two study groups : D ( n=17 ; BMI = 30+/-1 kg/m ( 2 ) ) and DET ( n=21 ; 28+/-1 kg/m ( 2 ) ) . Ten lean children were included in a control group ( 10+/-0.3 years ; 17+/-0.5 kg/m ( 2 ) ) . All children performed maximal treadmill testing with respiratory gas analysis ( breath-by-breath ) to determine the ventilatory anaerobic threshold ( VAT ) and peak oxygen consumption ( VO ( 2 ) peak ) . VentE was determined by the VE/VCO ( 2 ) method at VAT . Obese children showed lower VO ( 2 ) peak and lower VentE than controls ( p<0.05 ) . After interventions , all obese children reduced body weight ( p<0.05 ) . D group did not improve in terms of VO ( 2 ) peak or VentE ( p>0.05 ) . In contrast , the DET group showed increased VO ( 2 ) peak ( p=0.01 ) and improved VentE ( DeltaVE/VCO (2)=-6.1+/-0.9 ; p=0.01 ) . VentE is decreased in obese children , where weight loss by means of DET , but not D alone , improves VentE and cardiorespiratory fitness during grade d exercise
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 .