Table 4.
Cardiovascular and ventilatory parameters during sessions A,B, C
| Parameters | Session | Males | Females |
|---|---|---|---|
| Session A | |||
| HR | Control | 66 (11) | 66 (9) |
| mBP | 92 (5) | 87 (8) | |
| RPP | 6080 (1130) | 5760 (1070) | |
| V A | 4.0 (0.4) | 4.3 (1.8) | |
| PETCO2 | 39.9 (2.9) | 36.4 (2.4) | |
| HR | Exposure | 67 (11) | 65 (5) |
| mBP | 91 (6) | 88 (6) | |
| RPP | 6060 (1070) | 5690 (560) | |
| V A | 4.1 (0.7) | 3.3 (0.8) | |
| PETCO2 | 39.6 (3.3) | 36.5 (2.6) | |
| HR | Elimination | 62 (11)* | 63 (4)* |
| mBP | 92 (5) | 90 (7) | |
| RPP | 5710 (1090) | 5680 (690) | |
| V A | 4.7 (0.8)** | 4.4 (1.6) | |
| PETCO2 | 36.6 (3.6)* | 32.4 (1.2)* | |
| Session B | |||
| HR | Control | 67 (11) | 64 (8) |
| mBP | 89 (4) | 88 (9) | |
| RPP | 5920 (935) | 5700 (1100) | |
| V A | 5.0 (1.0) | 3.4 (1.0) | |
| PETCO2 | 41.6 (2.7) | 38.1 (3.6) | |
| HR | Exposure | 68 (11) | 66 (8) |
| mBP | 87 (5) | 87 (11) | |
| RPP | 5920 (1030) | 5810 (1210) | |
| V A | 4.8 (1.2) | 3.6 (0.7) | |
| PETCO2 | 41.5 (2.4) | 37.8 (4.0) | |
| HR | Elimination | 63 (11)** | 65 (8) |
| mBP | 91(5) | 88 (9) | |
| RPP | 5710 (1090) | 5740 (1060) | |
| V A | 8.6 (3.0)* | 6.0 (1.6)* | |
| PETCO2 | 40.6 (2.0) | 38.1 (2.8) | |
| Session C | |||
| HR | Control | 72 (12) | 66 (9) |
| mBP | 90 (9) | 87 (8) | |
| RPP | 6520 (1290) | 5700 (947) | |
| V A | 5.4 (1.5) | 4.0 (2.4) | |
| PETCO2 | 41.0 (2.4) | 36.9 (2.6) | |
| HR | Exposure | 70 (11) | 65 (8) |
| mBP | 89 (5) | 86 (9) | |
| RPP | 6240 (1070) | 5660 (1010) | |
| V A | 4.9 (1.2) | 3.6 (1.9) | |
| PETCO2 | 39.9 (3.1) | 36.1 (5.3) | |
| HR | Elimination | 68 (9) | 68 (9) |
| mBP | 95 (5)* | 92 (10)* | |
| RPP | 6450 (950) | 6320 (1210) | |
| V A | 27.7 (8.1)* | 21.0 (4.4) | |
| PETCO2 | 40.9 (1.9) | 38.4 (2.1) | |
Mean (SD).
*
Significantly different from control (male and female data grouped, P < 0.05).
**
Significantly different from control (P < 0.05); end tidal CO2 concentration was significantly higher for the males compared to the females during all three sessions. HR, heart rate (beats/min); mBP, mean blood pressure (mmHg); RPP, rate‐pressure product; VA, alveolar ventilation (L/min); PETCO2, partial pressure of end‐tidal CO2 (mmHg).