FIGURE 2.

a) Minute ventilation (V′_E), b) tidal volume (V_T) and c) dyspnoea (Borg score) paired to workload during an incremental cycle exercise test in patients with chronic hypersensitivity pneumonitis (cHP) compared to age-matched healthy controls. V′_E and dyspnoea intensity were higher in cHP patients at any given work rate, whereas V_T was higher in controls at free wheel (FW), 40 W and peak exercise. Dyspnoea scores were higher in cHP patients, although this difference was not significant. Data are presented as mean±sem. *: p<0.05, **: p<0.005 for cHP patients versus controls.