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 .
The effect of diet and strength training on obese children's physical self-concept.
AIM The aim of this study was to examine the effects of a 6-week diet and exercise program , with emphasis on strength training , on the physical self-concept , body composition , and physical fitness of young overweight and obese children . METHODS Eighty-two overweight and obese children aged 8 - 11 years were r and omized into a  diet-only or a diet- and -strength training group .  Self-concept , body composition and physical fitness were measured before and after the 6-week study period using the Physical Self Description Question naires ( PSDQ ) , dual-energy X-ray absorptiometry ( DXA ) , and st and ard fitness tests .  Dietary intake was assessed with a food frequency question naire . Total daily energy intake was significantly reduced in both groups with a trend of more reduction in the diet-only group . RESULTS Both groups developed greater confidence in strength . Those in the diet- and -strength training group also improved their endurance self-concept . Body Mass Index ( BMI ) decreased significantly in both groups . Lean mass increased significantly in both groups but significantly more in the diet- and -strength training group ( + 0.8 kg vs + 0.3 kg , P<0.05 ) . H and grip , shuttle run , sit-up , and push-up were significantly improved in both groups , to a significantly greater extent in the diet- and -strength training group . CONCLUSION These findings confirm the 6-week program of either diet-only or diet- and -strength training  improved overweight/obese children 's  self-perception of muscular strength and body composition . With the diet- and -strength training program , self-concept in endurance also improved and the gain in lean body mass was more than double that of the diet only group
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 .