Group | No. | Time | VC (L) | FVC (L) | FEV1 (L) | FEV1/FVC (%) | PEF (L/s) |
Control group | 49 | Pre-intervention | 2.94 ± 0.82 | 2.92 ± 0.81 | 2.33 ± 0.62 | 77.78 ± 11.84 | 7.49 ± 10.66 |
Post-intervention | 1.96 ± 0.62 | 1.99 ± 0.63 | 1.65 ± 0.51 | 81.21 ± 8.71 | 4.08 ± 1.14 | ||
Observation group | 49 | Pre-intervention | 2.90 ± 0.82 | 2.92 ± 0.80 | 2.40 ± 0.64 | 77.73 ± 6.07 | 7.80 ± 13.17 |
Post-intervention | 2.40 ± 0.67① | 2.41 ± 0.68① | 2.03 ± 0.57① | 82.74 ± 7.10① | 5.14 ± 1.60① |