Table 1.
Haemodynamic and spontaneous ventilatory responses to LBNP at −40 mmHg
| LBNP (mmHg) | HR (beats min−1) | MAP (mmHg) | PP (mmHg) | VE (1 min−1) | VT (1) | Rf (breaths min−1) | PET,CO2 (mmHg) | CFV (cm s−1) |
|---|---|---|---|---|---|---|---|---|
| 0 | 77 ± 8 | 81 ± 3 | 63 ± 6 | 7.6 ± 0.7 | 0.5 ± 0.1 | 15 ± 1 | 40.5 ± 1.1 | 53.5 ± 9.2 |
| −40 | 93 ± 9* | 85 ± 5 | 54 ± 5* | 11.5 ± 1.5* | 0.9 ± 0.2 | 16 ± 1 | 31.9 ± 1.7* | 40.7 ± 6.9* |
Note that during these measurements no attempt was made to control VT, breathing frequency, or PET,CO2. HR, heart rate; PP, pulse pressure; VE, ventilation; VT, tidal volume and Rf, breathing frequency, n = 10;
*
P < 0.05, −40 vs. 0 mmHg LBNP.