TABLE 2.
Energy intake and expenditure during the controlled metabolic periods in overweight adolescents1
| Girls (n = 20) | Boys (n = 14) | |
| TEE (kcal/d) | 2835 ± 336 | 3332 ± 312a |
| REE (kcal/d) | 1450 ± 291 | 1703 ± 301a |
| Physical activity level (TEE/REE) | 2.02 ± 0.41 | 1.99 ± 0.32 |
| Prescribed energy intake2 (kcal/d) | 2111 ± 113 | 3070 ± 277a |
| Gross energy intake3 (kcal/d) | 2283 ± 124 | 3341 ± 317a |
| Gross energy urine (kcal/d) | 26 ± 12 | 25 ± 9 |
| Gross energy feces (kcal/d) | 232 ± 63 | 287 ± 74a |
| MEIunadj (kcal/d) | 2036 ± 140 | 3028 ± 266a |
| MEIwtstb (kcal/d) | 2804 ± 259 | 3225 ± 34a |
All values are means ± SDs. TEE, total energy expenditure (measured by doubly labeled water); REE, resting energy expenditure (measured by indirect calorimetry); MEIunadj, unadjusted metabolizable energy intake (gross energy of food − gross energy of feces − gross energy of urine); MEIwtstb, metabolizable energy intake for weight stability [MEIunadj − (weight change × 7600 kcal/kg)/number of days]. Superscript letters indicate significant differences between sexes, P < 0.05 (Student's t test).
Prescribed energy intake is the energy need calculated for each individual subject (predicted energy intake requirements) according to the estimated energy requirement formulas in the Dietary Reference Intakes report (22).
Gross energy intake is the energy of the food matter consumed by the subjects during the metabolic study period, which was measured by using bomb calorimetry.