Fig. 3

Response to methacholine in asthmatic patients comparing those with initial or developed pulmonary hyperinflation (n = 78;16.1%) with those without pulmonary hyperinflation (n = 404;83.9%), assessed by forced expiratory volume in one second (FEV₁) and forced expiratory flow at 50% vital capacity (FEF₅₀) and the effective specific conductance sG_eff