Table 1.
Reliability of surface EMG parameters of diaphragm and external intercostals in the quiet breathing trial.
| Pretest | Posttest | ICC* | P value# | |
|---|---|---|---|---|
| PImax (cmH2O) | 59.6±13.5 | 59.0±13.9 | 0.99 | 0.394 |
| Diaphragm | ||||
| RMS (μV) | 60.2±12.9 | 58.8±12.7 | 0.99 | 0.054 |
| Median frequency (Hz) | 104.0±17.0 | 103.2±17.5 | 0.98 | 0.635 |
| CMAP latency (ms) | 5.84±0.44 | 5.75±0.42 | 0.97 | 0.144 |
| CMAP amplitude (μV) | 643.8±315.3 | 672.6±355.4 | 0.99 | 0.064 |
| External intercostals | ||||
| RMS (μV) | 84.1±33.5 | 84.4±34.9 | 0.99 | 0.778 |
| Median frequency (Hz) | 100.1±9.8 | 100.6±11.4 | 0.99 | 0.558 |
| CMAP latency (ms) | 3.38±0.24 | 3.35±0.27 | 0.95 | 0.333 |
| CMAP amplitude (μV) | 874.9±291.2 | 880.3±294.0 | 0.99 | 0.428 |
*
ICC is the abbreviation of “Intraclass Correlation Coefficient”.
#
Paired t-test.