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 ± 0.67^①

2.41 ± 0.68^①

2.03 ± 0.57^①

82.74 ± 7.10^①

5.14 ± 1.60^①