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Table 2 Characteristics of the study sample for the calibration and validation groups

From: Resting energy expenditure in elite athletes: development of new predictive equations based on anthropometric variables and bioelectrical impedance analysis derived phase angle

 

All

(n = 126)

Calibration group

(n = 75)

Validation group

(n = 51)

Age, yrs

26.9 ± 9.1

26.8 ± 9.0

27.1 ± 9.5

Weight, kg

71.3 ± 10.9

71.4 ± 11.3

71.1 ± 10.6

Stature, cm

177 ± 7

177 ± 7

177 ± 7

BMI, kg/m2

22.8 ± 2.7

22.8 ± 2.8

22.8 ± 2.6

MREE, kcal/die

1831 ± 250

1834 ± 261

1826 ± 234

RQ

0.821 ± 0.07

0.832 ± 0.07

0.822 ± 0.07

BI-index, cm2/Ω

65.9 ± 9.6

65.9 ± 9.8

66.0 ± 9.4

PhA, degrees

7.76 ± 0.76

7.79 ± 0.74

7.73 ± 0.78

  1. Data are expressed as mean ± standard deviation
  2. BMI body mass index, MREE measured resting energy expenditure, RQ respiratory quotient, BI-index bioimpedance index, PhA phase angle