Respiratory muscle strength pre- and post-steroid trial
| Pre cmH2O | Post cmH2O | p‐value | |
| Noninvasive tests# | |||
| PI,max | 57.6±19 | 64.4±20 | 0.03* |
| PE,max | 83.8±38 | 93.5±38 | 0.01* |
| SNIP | 64.5±19 | 69.7±20 | 0.03* |
| Invasive tests¶ | |||
| Sniff Pdi | 96.8±19.7 | 98.6±22 | 0.82 |
| Sniff Poes | 70.9±19.2 | 72.6±20 | 0.97 |
| Cough Pgas | 212.5±62.5 | 234.5±55 | 0.33 |
| TwPdi | 16.8±9.1 | 17.9±10 | 0.55 |
| TwPdi,corr | 29.4±11.3 | 31.0±13 | 0.13 |
Data are presented as mean±sd, unless otherwise stated
PI,max: maximum static inspiratory mouth pressure
PE,max: maximum static expiratory mouth pressure
SNIP: sniff nasal pressure
Sniff Pdi: sniff transdiaphragmatic pressure
Sniff Poes: sniff oesophageal pressure
Pgas: gastric pressure
TwPdi: twitch transdiaphragmatic pressure
TwPdi,corr: twitch transdiaphragmatic pressure corrected by 5 cmH2O·L−1 above predicted functional residual capacity
#: n=25
¶: n=17
*: p<0.05