Total energy expenditure of 10- to 12-year-old Japanese children measured using the doubly labeled water method

Nutrition & Metabolism

Table 1 Predictive equations of total energy expenditure (TEE)

	Predictive equations
TEE_J-DRI (kcal/d) [4]	BMR standard^a (kcal/kg/d) × body weight (kg) × PA_J-DRI ^b
TEE_IOM (kcal/d) [5]	For boys aged 9–18 y: 88.5–61.9 × age^c (y) + PA_IOM ^d × [26.7 × body weight (kg) + 903 × height (m)]
TEE_IOM (kcal/d) [5]	For girls aged 9–18 y: 135.3–30.8 × age^c (y) + PA_IOM ^d × [10.0 × body weight (kg) + 934 × height (m)]
TEE_FAO (kcal/d) [12]	For boys aged 1–18 y: 310.2 + 63.3 × body weight (kg) - 0.263 × body weight (kg)²
TEE_FAO (kcal/d) [12]	For girls aged 1–18 y: 263.4 + 65.3 × body weight (kg) - 0.454 × body weight (kg)²

^aBMR standard is 37.4 kcal/kg/d for boys and 34.8 kcal/kg/d for girls [4]
^bPhysical activity coefficients (PA) determined by PAL in Japan-DRI (PA_J-DRI) [4] are as follows: if PAL <1.55, PA = 1.45 (level I); if 1.55 ≤ PAL <1.75, PA = 1.65 (level II); and if 1.75 ≤ PAL, and PA = 1.85 (level III) for both boys and girls
^cWe assumed an age of 10 years for 5th graders and 11 years for 6th graders
^dPA used in the DRI for the United States and Canada developed by the Institute of Medicine (IOM) (PA_IOM) [5] are as follows: boys, sedentary (1.0 ≤ PAL <1.4, PA = 1.00), low activity (1.4 ≤ PAL <1.6, PA = 1.13), active (1.6 ≤ PAL <1.9, PA = 1.26), and very active (1.9 ≤ PAL <2.5, PA = 1.42); girls,: sedentary (PA = 1.00), low activity (PA = 1.16), active (PA = 1.31), and very active (PA = 1.56)

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