Hyperbaric exposure without exercise (protocol 1) and with exercise 2 h before the dive (protocol 2)
| Baseline | Protocol 2: Exercise | Protocol 1: Sedentary | ||
|---|---|---|---|---|
| Post-exercise | Post-dive | Post-dive | ||
| DBP, diastolic blood pressure; MBP, mean blood pressure; PP, pulse pressure; PRU, peripheral resistance unit; SBP, systolic blood pressure. | ||||
| Values are mean (SEM). | ||||
| *p<0.05 and **p<0.01 from baseline. | ||||
| †p<0.05 and ††p<0.01 after the dive. | ||||
| Heart rate (beats/min) | 62(2) | 69(3) **†† | 61(3) | 58(2) |
| Stroke volume (ml) | 89(4) | 82(4) ** | 81(3)** | 83(4)** |
| Cardiac output (l/min) | 5.5(0.3) | 5.6(0.4) | 4.9(0.3)* | 4.8(0.3)* |
| SBP (mm Hg) | 120(1) | 114(2) | 117(3) | 117(5) |
| DBP (mm Hg) | 67 +/− 1 | 63 +/− 1** | 63 +/− 1** | 64 +/− 1* |
| MBP (mm Hg) | 85(1) | 80(1)** | 81(1)** | 81(1)* |
| PP (mm Hg) | 53(1) | 51(3) | 53(3) | 53(2) |
| PRU (mm Hg/l/min) | 13(0.6) | 12(0.7)† | 13.5(0.5) | 14(0.8) |