571 obese children and adolescents aged 3 to 16 years entered our therapeutic programme from June 1986 to June 1992. The excess P50 BMI was 151% +/- 21% in the girls and 156% +/- 21% in the boys. The food intake was calculated from a three-day diary. The total energy intake was close to the RDA (girls: 95 % +/- 22% , boys: 99% +/- 25%) but the fat content was high (girls: 38.7% +/- 5.3%, boys: 39.5% +/- 5.7%). The P/S ratio, the fiber intake and the total water volume were low. The total energy intake was greater in the children with an excess P50 BMI above versus below 150%, in those watching TV more versus less than 15 hours/week and also in those with one parent having a BMI above 30 versus both parents having a BMI below 27. A hypocaloric balance diet was prescribed with a total energy content corresponding to 65% of the RDA. In 330 children following the programme a maximum decrease of the excess BMI was observed at 6-12 months (-12.6%). In the children who were successfully treated for more than six months, this reduction was significantly greater (-17.5%). In 75 of these children a second dietary evaluation demonstrated a significant improvement of alimentation although not close to the diet prescription. This therapeutic approach was compared to PSMF diet and behavioral family-based programmes.
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