Figure 1
From: Airway resistance at maximum inhalation as a marker of asthma and airway hyperresponsiveness
Typical respiratory system resistance tracings for a nonasthmatic and an asthmatic subject. Typical trace of respiratory system resistance (Rrs) at 8 Hz and relative inhaled volume (above functional residual volume) for a nonasthmatic (H09) and asthmatic (A04) subject at baseline. Both participants are female and of similar age, height, and weight. End-inspiration Rrs values are used in analysis (open circles). The minimum resistance achieved at maximum inspiration is termed Rmin. The Rrs is plotted as a solid line, and the inhaled volume is plotted as a dotted line.