Signal-averaged ECG data on patients affected by arrhythmogenic right ventricular cardiomyopathy (AVRC) patients, athletes and untrained control subjects
| ARVC (n=40) | Athletes (n=40) | Controls (n=40) | ARVC vs athletes | ARVC vs controls | Athletes vs controls | |
|---|---|---|---|---|---|---|
| Presence of late potentials (patients) | 22 (55%) | 2 (5%) | 3 (7.5%) | 0.00001 | 0.00001 | 0.587 |
| QRSD (ms) | 100.9 (13) | 87.9 (9.7) | 87.4 (9.3) | 0.00001 | 0.00001 | 0.814 |
| 25–250 Hz | ||||||
| QRS (ms) | 124.8 (11.9) | 118.6 (10) | 119.5 (7,6) | 0.013 | 0.020 | 0.6517 |
| LAS (ms) | 28.4 (10) | 18.8 (6.5) | 17.2 (4.2) | 0.00001 | 0.00001 | 0.194 |
| RMS (μV) | 43.3 (23.9) | 91.4 (47.9) | 98.2 (43.9) | 0.00001 | 0.00001 | 0.510 |
| 40–250 Hz | ||||||
| QRS (ms) | 116.7 (12.4) | 110 (8) | 109.7 (7.9) | 0.005 | 0.0035 | 0.866 |
| LAS (ms) | 40.8 (9.7) | 27.5 (8.4) | 26.7 (10.3) | 0.00001 | 0.00001 | 0.704 |
| RMS (μV) | 24.4 (17.8) | 48 (24.9) | 54.2 (21.2) | 0.00001 | 0.00001 | 0.234 |
| 80–250 Hz | ||||||
| QRS (ms) | 105 (11.3) | 97.8 (8.6) | 97.8 (8.4) | 0.0019 | 0.0018 | 1 |
| LAS (ms) | 40 (10.9) | 26.8 (7.6) | 25.6 (11.9) | 0.00001 | 0.00001 | 0.5925 |
| RMS (μV) | 12.3 (8.9) | 27.9 (14.5) | 31.5 (18.4) | 0.00001 | 0.00001 | 0.3341 |
LAS, mean value of low amplitude signal duration in the last 40 ms of the filtered QRS; QRS, mean value of filtered QRS duration; QRSD, mean value of filtered QRS; RMS, mean value of the root mean square of the voltage in the last 40 ms of the filtered QRS.