Table 2.
Logistic model parameters describing the baroreflex curves for RSNA and HR
| Pa-RSNA reflex | A1 (%) | A2 (mmHg−1) | A3 (mmHg) | A4 (%) |
|---|---|---|---|---|
| Exercise | ||||
| Pre-exercise | 184.4 ± 24.4 | 0.089 ± 0.009 | 102.4 ± 3.2 | 23.0 ± 6.7 |
| Exercise | 305.9 ± 53.8*† | 0.109 ± 0.013 | 117.5 ± 7.0*† | 74.6 ± 23.3*† |
| Post-exercise | 135.9 ± 20.3* | 0.097 ± 0.008 | 96.2 ± 3.5 | 14.8 ± 3.1 |
| Time control | ||||
| Pre-sham exercise | 187.3 ± 30.5 | 0.092 ± 0.013 | 99.5 ± 5.2 | 31.8 ± 6.9 |
| Sham exercise | 187.4 ± 30.5 | 0.093 ± 0.011 | 95.9 ± 4.4 | 33.2 ± 8.6 |
| Post-sham exercise | 181.6 ± 37.2 | 0.089 ± 0.007 | 94.4 ± 7.0 | 26.1 ± 6.5 |
| Pa-HR reflex | A1 (beats min−1) | A2 (mmHg−1) | A3 (mmHg) | A4 (beats min−1) |
| Exercise | ||||
| Pre-exercise | 199.4 ± 16.3 | 0.095 ± 0.020 | 122.9 ± 4.0 | 290.2 ± 15.7 |
| Exercise | 139.7 ± 15.6* | 0.106 ± 0.013 | 126.3 ± 4.0 | 435.6 ± 18.5*† |
| Post-exercise | 207.9 ± 18.7 | 0.072 ± 0.005 | 121.3 ± 5.4 | 274.8 ± 9.0 |
| Time control | ||||
| Pre-sham exercise | 172.0 ± 12.0 | 0.093 ± 0.012 | 116.6 ± 2.7 | 302.6 ± 7.1 |
| Sham exercise | 165.3 ± 14.6 | 0.102 ± 0.100 | 121.0 ± 2.2 | 298.1 ± 7.1 |
| Post-sham exercise | 187.9 ± 16.8 | 0.091 ± 0.012 | 117.7 ± 2.6 | 270 ± 7.8 |
Values are means ±s.e.m.A1, response range; A2, gain coefficient; A3, pressure at the midrange of the curve (centring point); A4, minimum response.
*
P < 0.05 vs. pre-exercise
†
P < 0.05 vs. time control at corresponding period.