Association between sEMGpara%max, EMGdi%max recorded during tidal resting breathing and lung function measured in 15 patients with cystic fibrosis
| sEMGpara%max | EMGdi%max | |
| Pearson correlation r (p value) | Pearson correlation r (p value) | |
| FEV1% pred | −0.91 (0.001) | −0.82 (0.001) |
| VC% pred | −0.57 (0.020) | −0.54 (0.035) |
| IC (l) | 0.63 (0.011) | 0.56 (0.030) |
| FEV1/VC | −0.60 (0.016) | −0.67 (0.005) |
| RV/TLC | 0.55 (0.030) | 0.62 (0.010) |
| CLdyn | −0.53 (0.043) | −0.59 (0.020) |
CLdyn, dynamic lung compliance; EMGdi, diaphragm electromyogram; FEV1, forced expiratory volume in 1 s; IC, inspiratory capacity; RV, residual volume; sEMGpara, surface parasternal electromyogram; TLC, total lung capacity; VC, vital capacity.