Figure 2.
Example of the pressure and flow signals recorded during application of a 5 Hz forced oscillation during volume-controlled noninvasive mechanical ventilation in a patient with a chest wall restrictive defect. The 5 Hz forced oscillation technique component is superimposed on the pressure and flow ventilator waveforms.
Navajas and Farré Critical Care 2001 5:3 doi:10.1186/cc972