Table 2.
Haemodynamic values during baseline period prior to rebreathing protocol
| Variable | Caucasian Americans (n = 21) | African Americans (n = 21) | P Value |
|---|---|---|---|
| HR (beats min−1) | 57 ± 10 | 61 ± 9 | 0.15 |
| MAP (mmHg) | 98 ± 15 | 99 ± 13 | 0.91 |
| CBFV (cm s−1) | 63 ± 13 | 65 ± 16 | 0.71 |
(mmHg) |
38 ± 4 | 40 ± 5 | 0.29 |
| CVCI (cm s−1 mmHg−1) | 0.66 ± 0.2 | 0.67 ± 0.2 | 0.89 |
Values are means ± SD. Abbreviations: CBFV, velocity of blood in the middle cerebral artery; CVCI, index of cerebral vascular conductance; HR, heart rate; MAP, mean arterial pressure; and
, partial pressure of end-tidal carbon dioxide.
