Fig. 2

Electromyographic (EMG) activity of Alae nasi and parasternal intercostal muscles at baseline (PSV-Baseline), after personalization of ventilator settings (PSV-Personalization) and with proportional assist ventilation (PAV). The EMG activity is described by peak EMG (EMGmax) and area under the curve (EMGauc) and is expressed as a proportion of the EMG activity under the PSV-Baseline condition. Line inside the boxes median, limits of the boxes 75th and 25th percentiles of the data (interquartile range), whiskers 5th and 95th percentiles. * p < 0.05 compared to the PSV-Baseline condition, § p < 0.05 compared to the PSV-Personalization condition