TABLE 2.
Estimation of arterial pressure offset (AP), gain (G) of mechanoneural (MN) and neuromechanical (NM) arcs, and open-loop gain (GL).
| Parameter | Estimated value |
| MN arc | |
| GMN, pg⋅ml–1⋅mmHg–1 | 8.92 ± 3.07 |
| APMN,0, mmHg | 103.0 ± 9.5 |
| Correlation coefficient | –0.96 ± 0.05 |
| NM arc | |
| Supine position | |
| GNM(0), mmHg⋅ml⋅pg–1 | 0.61 ± 0.08 |
| APNM,0(0), mmHg | 34.1 ± 4.9 |
| Head-up position of 15 degrees | |
| GNM(15), mmHg⋅ml⋅pg–1 | 0.36 ± 0.05* |
| APNM,0(15), mmHg | 33.4 ± 8.6 |
| Open-loop gain | |
| GL(0) | 5.62 ± 0.98 |
| GL(15) | 3.75 ± 0.62* |
Note that values for open-loop gain have no unit. AP is the estimated pressure at zero neural activity. Values are means ± SD. *P < 0.05 from supine position. See section “Materials and Methods” for detailed explanation of definition of parameters.