Tidal volumes and respiratory related impedance changes.

A) Tidal volumes in liters. B) Amplitude changes due to respiration were normalized to tidal volume [AU/L]. The example shows data reconstructed using R_G. The red lines denote median values, the blue box encompasses values between the 25^th and 75^th percentile. Whiskers cover 95% of the data. Positions that are significantly different (Friedman’s test) are labeled with their appropriate number.