Skip to main content
. Author manuscript; available in PMC: 2015 Jul 1.
Published in final edited form as: Respir Physiol Neurobiol. 2014 Apr 4;198:13–19. doi: 10.1016/j.resp.2014.03.013

Fig. 1.

Fig. 1

Representative responses of cough frequency (number of coughs per minute) to hyperventilation of humidified room air (open triangles) and hot air (closed triangles) in an AR patient (left panel) and a healthy subject (right panel). During hyperventilation (shaded bars), the subjects breathed at 40% of maximal voluntary ventilation for 4 minutes of a gas mixture of 4.5% CO2 balance air.