Fig. 4From: Indacaterol and glycopyrronium versus indacaterol on body plethysmography measurements in COPD—a randomised controlled study a Forced expiratory volume in 1 s (FEV1) [L] over time (ITT population, N = 77); b Forced vital capacity (FVC) [L] (N = 77); c Airway resistance (Raw) [cmH2O/L/s] (N = 77)Back to article page