Parasternal EMG
| Normal subjects | Controlled asthma | Uncontrolled asthma | |
| EMGpara, TLC | 90.0 (28.3)* | 56.0 (22.2) | 48.0 (32.5) |
| EMGpara, Sniff | 90.9 (43.1) | 74.6 (30.2) | 54.0 (32.3) |
| EMGpara, PImax | 60.5 (22.4) | 54.3 (41.9) | 39.7 (33.3) |
| EMGpara, MVV | 61.8 (16.7) | 46.7 (32.9) | 36.8 (24.8) |
Maximum inspiratory EMG of the parasternal intercostals during four different maximal respiratory manoeuvres. All EMG data are in μV. The highest root-mean-square mean EMGpara was achieved using sniff manoeuvres.
↵* Difference between normal group versus controlled asthma (p<0.05).
EMGpara, electromyogram of the parasternal intercostals; MVV, maximum voluntary ventilation; PImax, maximum inspiratory pressure; TLC, total lung capacity.