Table 1.

Subject Characteristics

	Young	Older
n, M/F	8M/8F	7M/6F
Age, yr	26 ± 1	64 ± 2*
Height, cm	175 ± 3	171 ± 2
Weight, kg	72 ± 3	76 ± 4
BMI, kg/m2	23.3 ± 0.6	25.8 ± 0.8
MAP, mmHg	83 ± 3	84 ± 4
Hemoglobin, g/dl	14.1 ± 0.4	13.8 ± 0.4
Glucose, mg/dl	80 ± 2	93 ± 2*
Cholesterol, mg/dl	172 ± 9	185 ± 8
HDL cholesterol, mg/dl	56 ± 2	57 ± 4
LDL cholesterol, mg/dl	98 ± 8	111 ± 7
Triglycerides, mg/dl	90 ± 11	86 ± 8
V̇o2max, ml · kg−1 · min−1	38 ± 3	27 ± 2*
MCAv, cm/s	55 ± 5	39 ± 4*
MCAv reactivity, cm · s−1 · mmHg−1	1.61 ± 0.17	1.06 ± 0.15*
CVCi, cm · s−1 · mmHg−1	0.68 ± 0.06	0.47 ± 0.06*
CVCi reactivity, cm · s−1 · mmHg−1	0.015 ± 0.002	0.007 ± 0.002*

Values are means ± SE. M, men; F, women; BMI, body mass index; MAP, mean arterial pressure; HDL, high-density lipoprotein; LDL, low-density lipoprotein; V̇o_2max, maximal oxygen consumption; MCAv, middle cerebral artery velocity; CVCi, cerebrovascular conductance index.

^*P < 0.05 vs. young.