Fig. 1From: Non-linear parameters of specific resistance loops to characterise obstructive airways diseasesComparison of typical specific resistance loops: a Healthy subject, b Asthma subject, c COPD subject; Examples of asthma and COPD are having almost identical sGAW (=0.60 [1/ kPa*sec]), yet they are visually completely different due to different resistive mechanismsBack to article page