R-R interval (msec) | 1071 ± 69 | 1065 ± 71 | 1046 ± 69 |
Arterial pressure (mmHg) |
Systolic | 114 ± 5 | 109 ± 2 | 110 ± 2 |
Diastolic | 65 ± 2 | 63 ± 1 | 64 ± 2 |
|
Spectral power (10−3 sec2/mmHg) |
Respiratory frequencies (0.2–0.3 Hz) | 4.5 ± 0.9 | 5.6 ± 1.6 | 2.6 ± 1.1 |
Low frequencies (0.05–0.15 Hz) | 2.9 ± 0.6 | 3.6 ± 1.6 | 2.6 ± 0.6 |
Very low frequencies (<0.05 Hz) | 4.3 ± 0.8 | 2.7 ± 0.8 | 6.1 ± 2.9 |
|
Carotid baroreflex |
Range (msec) | 251 ± 36 | 246 ± 40 | 226 ± 28 |
Maximum slope (msec/mmHg) | 5.2 ± 0.9 | 5.0 ± 1.0 | 4.9 ± 0.8 |
Operational point (%) | 48 ± 9 | 50 ± 7 | 60 ± 10 |
|
Catecholamines (ρg/ml) |
Norepinephrine | 212 ± 26 | 226 ± 51 | 198 ± 37 |
Epinephrine | 29 ± 10 | 14 ± 2 | 19 ± 6 |