Subjects n | PEFR L·min-1 | PIFR L·min-1 | PEFR/PIFR ratio | Frequency Hz | |
Huff | 17 | 302.4±121.8 | 124.8±85.2 | 2.80 | |
Cough | 17 | 280.2±114.6 | 100.8±44.4 | 3.07 | |
Vibration | 17 | 94.8±43.8 | 63.6±16.2 | 1.51 | 8.4±0.4 |
Autogenic drainage | 14 | 85.2±28.8 | 50.4±13.8 | 1.69 | |
Flutter | 17 | 67.8±18.0 | 63.0±16.2 | 1.15 | 11.3±1.5 |
Percussion | 18 | 49.8±8.4 | 50.4±6.0 | 0.99 | 7.3±0.3 |
Acapella | 18 | 35.4±4.8 | 58.8±16.2 | 0.64 | 13.5±1.7 |
PEP | 18 | 26.4±9.0 | 57.6±12.0 | 0.47 |
Data are presented as n or mean±sd. Data from [49–51]. PEFR: peak expiratory flow rate; PIFR: peak inspiratory flow rate; PEP: positive expiratory pressure.