Table 2.
Mean and (SD) values of lung function parameters on five occasions during the day
| Parameter/time | 9 | 10 | 11 | 14 | 15 |
|---|---|---|---|---|---|
| FEV1 | 1.48 (0.70) | 1.48 (0.69) | 1.48 (0.90) | 1.48 (0.70) | 1.41 (0.68) |
| FIV1 | 2.70 (0.85) | 2.71 (0.87) | 2.69 (0.87) | 2.65 (0.84) | 2.62 (0.81) |
| IC | 2.13 (0.69) | 2.15 (0.68) | 2.17 (0.72) | 2.18 (0.75) | 2.14 (0.79) |
| MIF50 | 4.68 (1.63) | 4.61 (1.61) | 4.65 (1.62) | 4.51 (1.55) | 4.47 (1.18) |
| PIF | 4.96 (1.67) | 4.92 (1.66) | 4.95 (1.67) | 4.89 (1.61) | 4.84 (1.65) |
FEV1 = Forced Expiratory Flow in one second; FIV1 = Forced Inspiratory Flow in One second; IC- Inspiratory Capacity; MIF50 = Maximal Inspiratory Flow at 50%; PIF = peak Inspiratory Flow.