Table 2.
Hemodynamic data collected during sitting and standing
| Sitting | Standing | |
|---|---|---|
| Arterial systolic pressure, mmHg | 142 ± 3.0 | 137 ± 3.1 |
| Arterial diastolic pressure, mmHg | 79 ± 1.9 | 80 ± 2.6 |
| Mean arterial pressure, mmHg | 101 ± 1.9 | 99 ± 1.4 |
| Pulse pressure, mmHg | 62 ± 2.6 | 57 ± 4.6 |
| Heart rate, beats/min | 70 ± 2.8 | 85 ± 6.7 |
| Diameter at diastole, cm | 5.06 ± 0.17 | 4.05 ± 0.17 |
| Diameter at systole, cm | 3.15 ± 0.16 | 2.24 ± 0.30 |
| Wall thickness at diastole, cm | 0.80 ± 0.07 | 1.00 ± 0.10 |
| Wall thickness at systole, cm | 1.46 ± 0.07 | 1.57 ± 0.06 |
| Thickening, cm | 0.67 ± 0.06 | 0.57 ± 0.07 |
| Stroke volume, ml | 82 ± 5.6 | 54 ± 5.5 |
| Stroke index, ml/m2 | 57 ± 3.9 | 37 ± 3.8 |
| Stroke work, units | 8,255 ± 546 | 5,370 ± 557 |
| Cardiac output, l/min | 5.74 ± 0.40 | 4.56 ± 0.20 |
| Cardiac index, l·min−1·m−2 | 3.96 ± 0.28 | 3.14 ± 0.14 |
| Cardiac work, units | 579 ± 28 | 451 ± 28 |
| Ejection fraction, % | 67 ± 2 | 64 ± 6 |
| Myocardial O2 consumption, units | 9,837 ± 408 | 11,635 ± 792 |
| Total peripheral resistance, units | 19 ± 1.4 | 22 ± 1.2 |