Table 1. Subject characteristics (X ± SD)
VariableCaucasians (n = 9)African Americans (n = 14)
Age (year)45.1 ± 7.839.9 ± 10.6
Body mass index (kg·m−2)30.5 ± 1.831.1 ± 4.5
Waist circumference (cm)98.0 ± 7.288.3 ± 9.4*
Relative peak oxygen consumption (mL·kg−1·min−1)29.7 ± 6.425.3 ± 5.7
Awake systolic blood pressure (mmHg)139.3 ± 7.0140.2 ± 12.3
Awake diastolic blood pressure (mmHg)85.0 ± 5.184.3 ± 6.9
Glucose (mg·dL−1)96.4 ± 12.297.2 ± 10.3
Ambulatory arterial stiffness index0.415 + 0.9300.391 + 0.143
Insulin (μIU·mL−1)13.1 ± 10.19.4 ± 6.0
Homeostatic model of assessment3.1 ± 2.22.3 ± 1.5
Total cholesterol (mg·dL−1)207.8 ± 31.3178.5 ± 27.3*
Low‐density lipoproteins (mg·dL−1)129.4 ± 20.3108.3 ± 32.7
High‐density lipoproteins (mg·dL−1)44.1 ± 10.953.9 ± 14.8
Triglycerides (mg·dL−1)170.8 ± 88.883.7 ± 35.8**
Nitrite (NO2)/Nitrate (NO3) (μmol·L−1)23.3 ± 37.010.9 ± 13.1
C‐reactive protein (mg·dL−1)1.1 ± 1.02.8 ± 3.5
Endothelin (pmol·L−1)0.222 ± 0.2130.378 ± 0.663
Plasma renin activity (ng·mL−1·h−1)1.7 ± 1.1 (n = 2)0.946 ± 0.840 (n = 8)
  • *P < 0.05; **P < 0.01.