Table 1.
Baseline and peak cardiovascular responses to the cold pressor test in all individuals and separated into low and high aPWV groups
| All (n = 22) | Lower Arterial Stiffness (n = 11) | Higher Arterial Stiffness (n = 11) | ||||
|---|---|---|---|---|---|---|
| Baseline | CPT | Baseline | CPT | Baseline | CPT | |
| Age (years) | 41 ± 19 (18–73) | — | 26 ± 7 (18–39) | — | 56 ± 15b (24–73) | — |
| Gender (Male/Female) | 14/8 | — | 8/3 | — | 6/5 | — |
| Height (cm) | 175 ± 9 | — | 176 ± 10 | — | 173 ± 8 | — |
| Weight (Kg) | 76.7 ± 18.1 | — | 77.3 ± 14.4 | — | 76.2 ± 21.8 | — |
| BMI (Kg/m2) | 24.98 ± 4.47 | — | 24.69 ± 2.97 | — | 25.28 ± 5.74 | — |
| aPWV (m/sec) | 6.62 ± 1.74 (4.4–10.3) | — | 5.25 ± 0.56 (4.4–6.0) | — | 7.98 ± 1.40b (6.1–10.3) | — |
| AIx75 (%) | 6 ± 16 | 26 ± 10a | −2 ± 16 | 20 ± 12a | 14 ± 13b | 31 ± 5a , c |
| Mean arterial pressure (mmHg) | 90 ± 9 | 114 ± 9a | 91 ± 10 | 114 ± 8a | 90 ± 9 | 113 ± 11a |
| Peripheral systolic pressure (mmHg) | 125 ± 10 | 152 ± 13a | 127 ± 9 | 151 ± 13a | 123 ± 11 | 153 ± 14a |
| Peripheral diastolic pressure (mmHg) | 71 ± 9 | 89 ± 8a | 72 ± 9 | 90 ± 7a | 70 ± 9 | 88 ± 10a |
| Peripheral pulse pressure (mmHg) | 54 ± 7 | 66 ± 11a | 55 ± 6 | 64 ± 10a | 53 ± 9 | 69 ± 12a |
| Central systolic pressure (mmHg) | 109 ± 9 | 134 ± 13a | 107 ± 10 | 135 ± 14a | 110 ± 9 | 142 ± 11a |
| Central diastolic pressure (mmHg) | 72 ± 9 | 91 ± 9a | 73 ± 9 | 92 ± 8a | 71 ± 9 | 90 ± 10a |
| Central pulse pressure (mmHg) | 36 ± 7 | 51 ± 12a | 34 ± 4 | 45 ± 9a | 39 ± 8b | 56 ± 12a , c |
| Heart rate (bpm) | 66 ± 9 | 77 ± 14a | 69 ± 10 | 81 ± 17a | 64 ± 7 | 77 ± 10a |
AIx75, aortic augmentation index relative to 75 bpm. Values are means ± SD for 22 subjects. Range is included in parenthesis for age and aPWV. CPT, cold pressor test.
a
Different from baseline within that respective group (P ≤ 0.05).
b
Different between lower and higher aPWV groups at baseline (P ≤ 0.05).
c
Different between lower and higher aPWV groups at peak increase during CPT (P ≤ 0.05).