Intervention | Subjects n | PEFR L·s−1 | PIFR L·s−1 | PEFR/PIFR | VI L | VE L | Coughs stimulated |
Vibration | 17¶ | 1.58±0.73 | 1.06±0.27 | 1.51 | 1.78±0.87 | 2.44±1.06 | 0.7±1.0 |
Cough | 17¶ | 4.67±1.91*** | 1.68±0.74 | 3.07 | 1.78±0.85 | 2.02±0.92 | 1.9±2.3 |
HuffHIGH | 17¶ | 5.04±2.30*** | 2.08±1.42 | 2.80 | 1.95±0.82 | 2.25±0.91 | 2.4±3.7 |
Data are presented as mean±sd of means of each subject, unless otherwise stated. PEFR: peak expiratory flow rate; PIFR: peak inspiratory flow rate; VI: inspired volume; VE: expired volume; HuffHIGH: huff from high lung volumes. ¶: data lost due to technical difficulties (data from different interventions lost in different subjects). p-value is significantly different from vibration. ***: p<0.001.