Table 3.

Glucose oxidation and kinetics

	RER	CHO Oxidation, mg·kg−1·min−1	NOGD, mg·kg−1·min−1	Rd, mg·kg FFM−1·min−1	MCR, ml·kg−1·min−1
Baseline
NGT	0.77±0.01	0.44±0.13	1.28±0.11	1.70±0.04	1.92±0.06
IFG	0.82±0.02*	1.12±0.25*	0.82±0.24*	1.93±0.07*	1.95±0.10
IGT/IFG	0.76±0.02†	0.51±0.18†	1.23±0.20†	1.77±0.06	1.76±0.14
Low-dose (4 mU·m2·min−1) clamp
NGT	0.81±0.04	0.69±0.27	0.70±0.29	1.35±0.08	1.62±0.11
IFG	0.80±0.02	0.78±0.22	0.34±0.25	1.41±0.08	1.50±0.08
IGT/IFG	0.76±0.01	0.34±0.12†	1.12±0.17†	1.40±0.11	1.49±0.10
High-dose (40 mU·m2·min−1) clamp
NGT	0.82±0.02	0.94±0.16	2.07±0.33	3.25±0.37	4.28±0.51
IFG	0.84±0.03	1.43±0.44	1.79±0.41	3.04±0.75	4.31±0.62
IGT/IFG	0.84±0.01	1.30±0.14	1.37±0.29	2.53±0.31	3.08±0.37

Values are means ± SE. RER, respiratory exchange ratio; CHO, carbohydrate; NOGD, nonoxidative glucose disposal; R_d, glucose rate of disappearance; MCR, metabolic clearance rate of glucose.

^*P < 0.05 vs. NGT;

^†P < 0.05 vs. IFG.