Table 4.
Pulmonary function test in the CTL and IMT group.
| Pulmonary function test |
Control group (n = 15) |
IMT group (n = 13) |
||||||
|---|---|---|---|---|---|---|---|---|
| Time point 1 | Time point 2 | Time point 3 | Time point 4 | Time point 1 | Time point 2 | Time point 3 | Time point 4 | |
| FVC (L) | 3.4 ± 1.2 | 3.2 ± 1.3 | 1.4 ± 0.4b,d | 2.7 ± 0.8c,e,f | 3.1 ± 0.7 | 3.0 ± 0.8a | 1.6 ± 0.5b,d | 2.7 ± 0.6f |
| FEV1 (L) | 2.8 ± 0.9 | 2.6 ± 1.1 | 1.1 ± 0.3b,d | 2.3 ± 0.6c,e,f | 2.5 ± 0.5 | 2.4 ± 0.6 | 1.3 ± 0.4b,d | 2.2 ± 0.4f |
| FEV1/FVC (%) | 84.3 ± 4.5 | 80.7 ± 9.9 | 79.4 ± 9.1 | 85.5 ± 5.6f | 82.4 ± 3.2 | 82.4 ± 4.8 | 81.3 ± 4.8 | 82.3 ± 4.6 |
| FVC (%pred) | 87.3 ± 18.5 | 84.7 ± 23.7 | 37.3 ± 7.9b,d | 70.2 ± 10.5c,e,f,* | 89.7 ± 15.5 | 87.4 ± 20.5a | 45.8 ± 14b,d | 80.2 ± 10c,e,* |
| FEV1 (%pred) | 87.7 ± 16.2 | 83.6 ± 24 | 35.9 ± 8.8b,d,* | 71.5 ± 9.5c,e,f | 88.3 ± 14 | 86.1 ± 20 | 44.8 ± 13.4b,d,* | 78.8 ± 9.1f |
| FEV1/FVC (%pred) | 100.9 ± 5.4 | 96.9 ± 11.6 | 96.1 ± 12 | 102.1 ± 5.8 | 98.6 ± 3.6 | 98.8 ± 4.8 | 97.5 ± 7.1 | 98.7 ± 5.2 |
Data were presented as mean ± SD. Nonparametric analysis – Wilcoxon sign rank test was used for within-group analysis and the Mann-Whitney U test was used for analysis between groups.
ap < .05 intragroup comparison between Timepoint 1 and Timepoint 2; bp < .05 intragroup comparison between Timepoint 1 and Timepoint 3; cp < .05 intragroup comparison between Timepoint 1 and Timepoint 4; dp < .05 intragroup comparison between Timepoint 2 and Timepoint 3; ep < .05 intragroup comparison between Timepoint 2 and Timepoint 4; fp < .05 intragroup comparison between Timepoint 3 and Timepoint 4; *p < 0.05 between group comparison.
IMT: Inspiratory muscle training; FVC: Forced vital capacity; FEV1: Forced expiratory volume in 1 s.