Table 1.

Participants' characteristics

	Young	Older
No. of subjects	12 (5 men)	12 (7 men)
Age, yr	24 ± 3	63 ± 8*
Height, cm	169 ± 8	168 ± 10
Weight, kg	67 ± 16	69 ± 13
Heart rate, beats/min	63 ± 7	61 ± 7
SBP, mmHg	111 ± 10	123 ± 19*
DBP, mmHg	67 ± 7	73 ± 8*

Values are means ± SD. SBP, systolic blood pressure; DBP, disastolic blood pressure.

^*Different from young subjects, P < 0.05.