From: Effects of combination therapy indacaterol/glycopyrronium versus tiotropium on moderate to severe COPD: evaluation of impulse oscillometry and exacerbation rate
V1 Pre dual bronchodilation
V4 Pre dual bronchodilation
R 5 Hz
0.74 ± 0.23
0.58 ± 0.13
R 20 Hz
0.45 ± 0.10
0.38 ± 0.06
X 5 Hz
-0.35 ± 0.16
-0.20 ± 0.09
IC
1.63 ± 0.59
2.04 ± 0.57
SGRQ
71.5 ± 15.97
58.25 ± 15.98