Trp64Arg Polymorphism in Beta3-Adrenergic Receptor Gene Is Associated with Decreased Fat Oxidation Both in Resting and Aerobic Exercise in the Japanese Male

Table 1

The physical characteristics and energy expenditure in subjects with the 𝛽3-AR Trp64Arg polymorphism. Data are expressed as means ± SD. ^∗𝑃 < .05.

	Male			Female
	Trp/Trp	Trp/Arg	𝑃	Trp/Trp	Trp/Arg	𝑃
		Arg/Arg			Arg/Arg
Number of subjects	29 （64.4%	16 （35.6%		23 （56.0%	18 （44.0%
Age (years)	21.6 ±2.3	23.1 ±3.9	0.16	21.6 ±2.8	22.7 ±5.3	0.42
Height (cm)	172.7 ±5.1	171.5 ±6.8	0.55	158.3 ±5.1	159.8 ±6.5	0.39
Weight (kg)	68.7 ±9.3	68.3 ±15.2	0.90	56.8 ±7.3	53.7 ±7.5	0.18
BMI (kg/m^2	23.0 ±2.7	23.2 ±5.0	0.87	22.7 ±3.2	21.0 ±2.5	0.06
Lean body mass (kg)	52.3 ±4.6	51.1 ±6.5	0.47	37.4 ±5.3	35.6 ±2.7	0.21
In the resting state
(kcal/kg/30min)
Energy expenditure	0.72 ±0.13	0.69 ±0.11	0.47	0.69 ±0.11	0.70 ±0.14	0.47
Fat oxidation	0.38 ±0.18	0.23 ±0.16	^∗0.01	0.38 ±0.18	0.32 ±0.15	0.29
Carbohydrate oxidation	0.34 ±0.17	0.46 ±0.12	^∗0.01	0.31 ±0.18	0.38 ±0.14	0.20
During the aerobic exercise
(kcal/kg/30min)
Energy expenditure	3.12 ±0.48	3.07 ±0.44	0.74	2.24 ±0.33	2.34 ±0.27	0.33
Fat oxidation	1.00 ±0.38	0.78 ±0.28	^∗0.05	0.74 ±0.29	0.76 ±0.32	0.89
Carbohydrate oxidation	2.12 ±0.44	2.29 ±0.38	0.22	1.50 ±0.41	1.58 ±0.36	0.48