Figure 3.

An example of (A) ‘premature expiratory cycling’ and (B) ‘delayed expiratory cycling’ asynchrony. Chest RIP, chest wall respiratory inductance plethysmography; Abdo RIP, abdominal wall respiratory inductance plethysmography; Sum RIP, sum of both the chest wall and abdominal inductance plethysmography bands; EMGpara, surface second intercostal parasternal electromyography signal reflecting patient neural inspiratory drive; Rectified RMS Signal, rectified root mean square of the parasternal electromyography signal to better characterise onset and termination of neural inspiratory time.