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Table 2 Characteristics of the subjects

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

  Boys Girls  
n Mean ± SD n Mean ± SD p i
Height (cm) 33 142.6 ± 6.9 23 145.5± 6.6 0.265
Body weight (kg) 33 37.9 ± 6.7 23 36.7 ± 6.3 0.458
BMIa (kg/m2) 33 18.6 ± 2.8 23 17.2 ± 1.9 0.092
 Overweight [n (%)]   6 (18%)   1 (4%)  
 Obesity [n (%)]   1 (3%)   0 (0%)  
FFMb (kg) 33 31.9 ± 4.3 23 29.6 ± 4.0 0.110
FMc (kg) 33 6.0 ± 3.7 23 7.1 ± 4.5 0.609
% fat (%) 33 15.1 ± 7.2 23 18.6 ± 9.4 0.387
TEEDLW-1d (kcal/d) 33 2107 ± 273 23 1847 ± 269 0.002
REEe (kcal/d) 33 1321 ± 113 23 1185 ± 69 0.000
PALf 33 1.60 ± 0.16 23 1.56 ± 0.19 0.626
Step count (steps/d)g 31 12,823 ± 2945 21 10,526 ± 2493 0.009
TEEDLW-2h (kcal/d) 26 2067 ± 230 22 1830 ± 262 0.004
  1. aSubjects were classified based on BMI cutoffs [29]
  2. b FFM fat-free mass
  3. c FM fat mass
  4. dTotal energy expenditure measured by doubly labeled water of all subjects
  5. eResting energy expenditure was predicted by equation of Kaneko et al. [26]
  6. fPhysical activity level was calculated as TEEDLW / predicted REE [26]
  7. gWe excluded the data of two boys and two girls because of insufficient pedometer wearing time
  8. hTEEDLW excluding overweight and obese subjects on the basis of BMI cutoffs [29]
  9. iAnalysis of covariance on each characteristics, adjusting for measurement timing