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. 2012 Jun 7;3:187. doi: 10.3389/fphys.2012.00187

Table 1.

Subject demographics.

Young women Young men Older women
n 51 36 14
Age, years 27 ± 1 27 ± 1 58 ± 2
BMI, kg/m2 23.0 ± 0.3 24.4 ± 0.4 24.4 ± 0.6
Heart rate, bpm 62 ± 1 58 ± 1 62 ± 2
Systolic blood pressure, mmHg 127 ± 2 130 ± 2 146 ± 6*
Diastolic blood pressure, mmHg 71 ± 1 71 ± 1 75 ± 2
Mean arterial pressure, mmHg 91 ± 1 90 ± 1 104 ± 4*
Pulse pressure, mmHg 56 ± 2 59 ± 2 71 ± 5*
MSNA, bursts/100 hb 26.6 ± 2.1 31.7 ± 2.6 62.4 ± 2.3*

Data are mean ± standard error. MSNA, muscle sympathetic nerve activity. *p < 0.05 vs. young women and young men.

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