TABLE 5.

Glucose kinetics

	Young		Elderly		ANOVA (P value)
	Basal	Amino acids with glucose	Basal	Amino acids with glucose	Effect of age	Effect of mixture	Interaction
Leg glucose kinetics [μmol/(kg·min)]
Delivery to the leg	17.49 ± 2.44	26.52 ± 5.55	18.29 ± 2.52	21.06 ± 4.33	0.66	0.0343	0.21
Release from the leg	16.74 ± 2.17	24.65 ± 5.08	17.76 ± 2.56	20.17 ± 4.27	0.73	0.0393	0.23
Net glucose uptake	0.75 ± 0.31	1.88 ± 0.49	0.52 ± 0.17	0.89 ± 0.21	0.13	0.0258	0.20
Whole body glucose kinetics [μmol/(kg·min)]
Total Ra	11.17 ± 0.32	18.95 ± 0.85	11.06 ± 0.85	20.15 ± 1.92	0.74	<0.0001	0.48
Endogenous Ra	11.17 ± 0.32	1.26 ± 0.88	11.06 ± 0.85	2.11 ± 1.62	0.80	<0.0001	0.54

Glucose delivery to the leg, release from the leg, net glucose uptake across the leg, whole body glucose Ra, and endogenous glucose Ra in normal young and elderly individuals in the basal state and during the intake of an amino acid-glucose mixture. Values are the mean ± SE.