New Predictive Equations for Resting Energy Expenditure in Normal to Overweight and Obese Population

Table 2

Characteristics of study population.

Variables	Total Mean ± SD (n = 423)	Men				Women				value
		Mean ± SD (n = 208)				Mean ± SD (n = 215)
		Normal Wt (N = 59)	Over Wt (N = 80)	Obesity (N = 69)	value	Normal Wt (N = 75)	Over Wt (N = 76)	Obesity (N = 64)	value
Age (year)	28.1 ± 8.0	23.6 ± 5.6	26.4 ± 8.7	25.0 ± 6.8	NS	28.2 ± 5.3	31.5 ± 8.1	33.6 ± 81
Ht (cm)	164.4 ± 8.5	170.9 ± 5.9	170.2 ± 5.4	171.5 ± 6.4	NS	158.0 ± 5.5	159.0 ± 53	157.4 ± 5.6	NS
Wt (kg)	77.4 ± 19.0	65.5 ± 6.6	79.5 ± 6.5	108.5 ± 14.6		56.3 ± 5.8	69.4 ± 6.2	85.7 ± 12.1
BMI (kg/m^2)	28.5 ± 6.1	22.4 ± 1.8	27.4 ± 1.4	36.9 ± 5.0		22.5 ± 1.7	27.4 ± 1.4	34.6 ± 4.3
IBW	57.8 ± 9.3	65.4 ± 6.4	64.5 ± 5.8	66.0 ± 6.9		50.4 ± 4.9	51.4 ± 4.7	49.9 ± 5.1	NS
AdjWt	62.7 ± 10.1	65.4 ± 5.9	68.3 ± 5.7	76.6 ± 7.2		51.9 ± 4.8	55.9 ± 4.9	58.9 ± 5.9
WC (cm)	87.8 ± 14.9	76.8 ± 7.8	89.7 ± 8.1	111.4 ± 10.5		73.1 ± 6.3	82.4 ± 6.6	93.8 ± 8.8
HC (cm)	104.9 ± 13.6	92.7 ± 5.6	102.8 ± 12.7	120.4 ± 10.5		93.8 ± 6.9	103.6 ± 6.1	116.5 ± 9.6		NS
WHR	0.76 ± 0.1	0.83 ± 0.1	0.88 ± 0.1	0.93 ± 01		0.78 ± 0.1	0.80 ± 0.1	0.81 ± 0.1	P < 0.05
MAC (cm)	30.4 ± 4.6	26.3 ± 2.4	28.8 ± 2.2	33.5 ± 4.4		27.1 ± 2.4	31.1 ± 2.6	36.0 ± 4.1
TST (mm)	27.2 ± 8.9	17.1 ± 6.7	25.4 ± 6.6	34.3 ± 6.3		22.3 ± 6.3	29.5 ± 6.7	34.0 ± 7.3
MAMA (cm^2)	39.2 ± 13.3	35.5 ± 10.8	35.0 ± 8.0	42.5 ± 14.7		32.9 ± 8.5	38.4 ± 8.9	52.2 ± 17.7
PBF (%)	31.6 ± 9.4	17.6 ± 5.1	25.1 ± 4.0	34.8 ± 5.2		30.0 ± 4.6	37.6 ± 3.2	43.8 ± 6.0
FM (kg)	25.0 ± 11.3	11.6 ± 4.0	19.9 ± 3.8	38.0 ± 10.0		17.1 ± 3.9	26.2 ± 4.0	37.3 ± 7.9
FMI	9.3 ± 4.3	4.0 ± 1.3	6.9 ± 1.3	13.0 ± 3.5		6.8 ± 1.4	10.3 ± 1.3	15.0 ± 3.0
FFM (kg)	52.2 ± 11.5	53.4 ± 5.2	59.3 ± 5.2	70.0 ± 7.7		39.2 ± 3.0	43.3 ± 3.3	48.4 ± 5.1
FFMI	19.2 ± 3.0	18.3 ± 1.2	20.4 ± 1.1	23.8 ± 2.4		15.7 ± 0.9	17.1 ± 0.8	19.5 ± 1.7
TBW (L)	47.1 ± 19.5	57.0 ± 8.5	52.6 ± 5.4	49.1 ± 5.0		40.8 ± 11.8	39.9 ± 7.6	39.3 ± 4.4	NS
RMR (kcal/day)	1749.8 ± 391.6	1762.5 ± 224.5	1932.4 ± 293.4	2278.7 ± 344.3		1366.4 ± 159.0	1526.7 ± 216.2	1647.6 ± 261.4
RQ	0.84 ± 0.1	0.79 ± 0.1	0.79 ± 0.1	0.81 ± 01	NS	0.72 ± 0.1	0.71 ± 0.1	0.72 ± 0.1	NS
VO2 (ml/min)	258.2 ± 56.0	258.5 ± 33.7	283.1 ± 42.2	331.5 ± 50.0		204.6 ± 24.1	227.1 ± 34.5	246.3 ± 39.6
VCO2 (ml/min)	196.4 ± 52.7	203.0 ± 29.1	222.9 ± 40.0	268.2 ± 47.2		146.7 ± 19.6	163.4 ± 27.9	176.5 ± 29.5

Significance difference between subgroups was assessed by the one-way ANOVA test while that between men and women was tested by the independent samples t-test. NS, nonsignificant; Ht, height; Wt, weight; BMI, body mass index; WC, waist circumference; HC, hip circumference; WHR, waist hip ratio; IBW, ideal body weight by the Hamwi equation; AdjWt, adjusted body weight; MAC, midarm circumference; TST, triceps skin-fold thickness; MAMA, midarm muscular area; PBF, percent body fat; FM, fat mass; FMI, fat mass index; FFM, fat-free mass; FFMI, fat-free mass index; TBW, total body water; RMR, resting metabolic rate; RQ, respiratory quotient; VO₂, volume of O₂ inspired per minute; VCO₂, volume of CO₂ expired per minute.