Table 2.
Variations in respiratory function indicators, mean ± SD
|
Time point
|
Indicators
|
Experiment group (n = 58)
|
Control group (n = 58)
|
t value
|
P value
|
| T0 | TV (mL) | 500.25 ± 32.45 | 498.75 ± 30.62 | 0.256 | 0.798 |
| T1 | TV (mL) | 480.50 ± 29.17 | 455.00 ± 30.75 | 4.582 | < 0.001a |
| T2 | TV (mL) | 470.30 ± 28.92 | 430.40 ± 31.55 | 7.100 | < 0.001a |
| T3 | TV (mL) | 485.75 ± 30.15 | 440.90 ± 29.80 | 8.057 | < 0.001a |
| T4 | TV (mL) | 495.40 ± 31.25 | 465.50 ± 30.10 | 5.248 | < 0.001a |
| T0 | MV (L/minute) | 6.25 ± 0.50 | 6.23 ± 0.48 | 0.220 | 0.826 |
| T1 | MV (L/minute) | 5.90 ± 0.45 | 5.50 ± 0.55 | 4.287 | < 0.001a |
| T2 | MV (L/minute) | 5.80 ± 0.50 | 5.20 ± 0.60 | 5.851 | < 0.001a |
| T3 | MV (L/minute) | 6.00 ± 0.55 | 5.40 ± 0.65 | 5.367 | < 0.001a |
| T4 | MV (L/minute) | 6.15 ± 0.52 | 5.80 ± 0.58 | 3.422 | 0.001a |
| T0 | PaO2 (mmHg) | 95.20 ± 5.80 | 94.90 ± 5.55 | 0.285 | 0.776 |
| T1 | PaO2 (mmHg) | 90.15 ± 4.70 | 85.25 ± 5.20 | 5.324 | < 0.001a |
| T2 | PaO2 (mmHg) | 88.00 ± 4.60 | 80.50 ± 5.10 | 8.317 | < 0.001a |
| T3 | PaO2 (mmHg) | 90.00 ± 4.80 | 82.40 ± 4.85 | 8.482 | < 0.001a |
| T4 | PaO2 (mmHg) | 93.50 ± 4.90 | 87.75 ± 5.00 | 6.255 | < 0.001a |
| T0 | PaCO2 (mmHg) | 40.30 ± 2.80 | 40.20 ± 2.70 | 0.196 | 0.845 |
| T1 | PaCO2 (mmHg) | 41.20 ± 2.60 | 43.00 ± 3.10 | -3.388 | 0.001a |
| T2 | PaCO2 (mmHg) | 41.50 ± 2.75 | 44.20 ± 3.00 | -5.053 | < 0.001a |
| T3 | PaCO2 (mmHg) | 40.80 ± 2.90 | 43.80 ± 3.15 | -5.336 | < 0.001a |
| T4 | PaCO2 (mmHg) | 39.90 ± 2.50 | 42.50 ± 2.85 | -5.223 | < 0.001a |
a
P < 0.05.
P indicating a statistically significant difference. TV: Tidal volume; MV: Minute ventilation volume; PaO2: Partial pressure of oxygen; PaCO2: Partial pressure of carbon dioxide.