Table 2.
Correlation data for physiological responses between Trial 1 and Trial 2 with continuous application of lower body negative pressure at a decompression rate of 3 mmHg/min
| Parameter | Slope | Correlation coefficient (r) | P-value |
|---|---|---|---|
| HR (bpm) | 1.07 | 0.99 | <0.001 |
| MAP (mmHg) | 1.16 | 0.99 | <0.001 |
| SAP (mmHg) | 1.09 | 0.99 | <0.001 |
| DAP (mmHg) | 1.17 | 0.98 | <0.001 |
| SV (% ∆) | 1.03 | 0.99 | <0.001 |
| CO (% ∆) | 1.12 | 0.98 | <0.001 |
| TPR (% ∆) | 0.85 | 0.83 | 0.02 |
| etCO2 (mmHg) | 0.89 | 0.97 | <0.001 |
| MCAv (cm/s) | 1.09 | 0.99 | <0.001 |
| PCAv (cm/s) | 1.02 | 0.99 | <0.001 |
| ScO2 (% ∆) | 1.06 | 0.98 | <0.001 |
Data are presented as means ± SE. HR, heart rate; MAP, mean arterial pressure; SV, stroke volume; CO, cardiac output; TPR, total peripheral resistance; etCO2, end tidal carbon dioxide; MCAv, middle cerebral artery velocity; PCAv, posterior cerebral artery velocity; ScO2, cerebral oxygen saturation. N = 18; N = 9 for PCA.