Table 2 Flow and pressure values obtained in response to 100% intensity PNS applied during expiration and inspiration in normals and OSA subjects. *: significant difference between inspiratory and expiratory values in a given group. Mean ± SEM.
Expiratory | Inspiratory | |||
|---|---|---|---|---|
Normal Subjects | OSA Subjects | Normal Subjects | OSA Subjects | |
| 716 ± 36 | 739 ± 51 | 990 ± 42 * | 1038 ± 58 * |
Peso peak at 100% stimulation I (cm H2O) | -17.6 ± 1.8 | -14.0 ± 2.0 | -21.1 ± 1.0 * | -17.7 ± 1.9 * |
Pphar peak at 100% stimulation I (cm H2O) | -11.2 ± 2.2 | -11.1 ± 2.1 | -15.9 ± 1.5 * | -14.7 ± 1.4 * |
R Phar 400 ml/s (cm H2O.ml-1.s) | 9.0 ± 0.7 | 9.5 ± 0.9 | 10.5 ± 1.3 | 8.5 ± 0.9 |
R Phar | 9.2 ± 0.8 | 11.1 ± 1.3 | 10.2 ± 0.9 | 8.4 ± 0.7 |
| 742 ± 248 | 752 ± 352 | 981 ± 297 * | 1014 ± 348 * |
Pphar lim (cm H2O) | -8.4 ± 4.2 | -7.2 ± 3.3 | -12.5 ± 4.1 * | -9.6 ± 3.6 * |
Δ | 234 ± 26 | 256 ± 37 | 258 ± 35 | 234 ± 24 |
% twitches with FL | 76.6 ± 3.4 | 79.0 ± 4.4 | 75.0 ± 3.5 | 84.4 ± 4.1 |
Imax (ml.s-1)