From: The effects of pressure- versus volume-controlled ventilation on ventilator work of breathing
ETT [35]
Lung airways
Normal [36]
COPD [37]
K1 (cmH2O.L−1.s)
0.85
1.85
5.03
K2 (cmH2O.L−2.s2)
6.35
0.43
2.69