Table 2.
Comparison of cardiovascular parameters over 90 min of maintaining the orthostatic position.
| Control (n = 15) | Spinal cord injury (n = 15) | |||
|---|---|---|---|---|
| Mean (SD) | Mean (SD) | p value | Mean difference (95% CI) | |
| Systolic arterial pressure (mmHg) | ||||
| Time 0 | 118.0 (10.1) | 117.3 (13.3) | >0.99 | –0.667 (–13.26 to 11.93) |
| Time 15 minutes | 116.7 (11.7) | 114.8(15.4) | 0.99 | –1.867 (–16.47 to 12.74) |
| Time 30 minutes | 114.7 (13.0) | 115.3 (16.4) | >0.99 | 0.667 (–15.05 to 16.38) |
| Time 45 minutes | 117.3 (13) | 114.7 (19.2) | 0.99 | –2.667 (–20.32 to 14.98) |
| Time 60 minutes | 116.7 (9.7) | 114.7 (18.4) | 0.99 | –2.000 (–18.00 to 14.00) |
| Time 75 minutes | 116.7 (12.3) | 115.3 (17.6) | >0.99 | –1.333 (–17.59 to 14.92) |
| Time 90 minutes | 116.0 (11.8) | 115.0 (17.8) | >0.99 | –1.000 (–17.18 to 15.18) |
| Diastolic arterial pressure (mmHg) | ||||
| Time 0 | 76.7 (10.5) | 79.3 (9.6) | 0.98 | 2.667 (–7.95 to 13.29) |
| Time 15 minutes | 78.0 (10.8) | 79.3 (12.8) | >0.99 | 1.333 (–11.22 to 13.88) |
| Time 30 minutes | 74.7 (9.1) | 80.0 (13.1) | 0.8 | 5.333 (–6.712 to 17.38) |
| Time 45 minutes | 78.3 (9.6) | 78.7 (14.6) | >0.99 | –0.667 (–13.87 to 12.53) |
| Time 60 minutes | 79.3 (8.0) | 78.7 (15.5) | >0.99 | –0.667 (–14.06 to 12.73) |
| Time 75 minutes | 78.0 (9.4) | 80.0 (16.0) | 0.99 | 2.000 (–12.15 to 16.15) |
| Time 90 minutes | 78.0 (10.1) | 78.7 (15.0) | >0.99 | 0.667 (–13.05 to 14.38) |
| Heart rate (bpm) | ||||
| Time 0 | 86.6 (22.4) | 91.7 (19.3) | 0.99 | 5.067 (–17.10 to 27.24) |
| Time 15 minutes | 85.9 (12.9) | 94.8 (15.7) | 0.52 | 8.933 (–6.349 to 24.22) |
| Time 30 minutes | 85.9 (16.1) | 86.9 (17.6) | >0.99 | 0.9333 (–16.92 to 18.78) |
| Time 45 minutes | 87.9 (14.0) | 91.6 (19.4) | 0.99 | 3.667 (–14.31 to 21.65) |
| Time 60 minutes | 81.7 (9.9) | 89.7 (15.8) | 0.55 | 8.000 (–6.149 to 22.15) |
| Time 75 minutes | 86.6 (13.2) | 87.8 (15.7) | >0.99 | 1.200 (–14.10 to 16.50) |
| Time 90 minutes | 87.1 (14.7) | 84.6 (15.0) | 0.99 | –2.533 (–18.16 to 13.09) |
| Oxygen saturation (%) | ||||
| Time 0 | 96.9 (1.6) | 97.1 (1.5) | 0.99 | 0.267 (–1.422 to 1.955) |
| Time 15 minutes | 96.7 (2.7) | 96.8 (1.7) | >0.99 | 0.067 (–2.309 to 2.442) |
| Time 30 minutes | 96.7 (1.9) | 97.3 (1.3) | 0.93 | 0.600 (–1.159 to 2.359) |
| Time 45 minutes | 96.9 (1.5) | 96.9 (2.5) | >0.99 | 0.000 (–2.261 to 2.261) |
| Time 60 minutes | 96. (2.8) | 97.4 (1.6) | 0.89 | 0.933 (–1.505 to 3.372) |
| Time 75 minutes | 97.0 (1.6) | 96.9 (1.7) | >0.99 | –0.067 (–1.863 to 1.730) |
| Time 90 minutes | 97.7 (1.0) | 97.1 (1.8) | 0.93 | –0.533 (–2.096 to 1.029) |
SD = standard deviation; 95% CI = 95% of CI.