The purpose of this study was to investigate the combined efect of dietary 
treatment and physical training on body fat distribution, the risk factors 
of chronic disease, and aerobic work capacity in obese children. The subjects
were 9 obese children (6 boys, 3 girls; 11.4 yrs; %fat, 33.6%). The areas of 
subcutaneous and visceral fat were measured using in CT images at the level of 
the umbilicus. Early in the morning, blood samples were taken to measure 
risk factors of chronic disease such as TG, HDL-C, LDL-C and uric acid, 
and their relationship with the areas of subcutaneous and visceral fat was 
examined. Supervised physical training at 50% Vo2max for 30min/day using a 
bicycle ergometer was performed 2 or 4 days/week for 10 weeks. The dietary 
treatment was varied with daily calorie intake between 1400 and 1900 kcal 
depending on the degree of obesity. After dietary treatment combined with 
physical training, the areas of subcutaneous and visceral fat decreased 
significantly (from 249.5 to 158.9c㎡ , from 46.0 to 28.5 c㎡ : p＜0.001, 
respectively), and such risk factors as TG, HDL-C, LDL-C and uric acid 
were noticeably redu-ced. Maximum oxygen uptake increased　significantly 
from 28.9 to 32.9 ml /kg/min (p＜0.05). These data suggest that dietary 
trearment com-bined with physical training in obese children reduced the risk 
factors of chronic disease and the distribution of body fat, while improving 
aerobic work capacity. Moreover, such treatment would be effective for the 
early treatment of obesity and prevention of chronic disease.