Table 1.
Difference percentage between the features of enhanced electrocardiogram signals and electrocardiogram signals acquired at rest.
| Difference | Movement, mean (SD) | Wavelet, mean (SD) | WICAa, mean (SD) | Rd-ICAb, mean (SD) |
| Amplitude P | 52.56 (23.20) | 59.91 (25.06) | 42.03 (36.77) | 27.46 (7.37) c |
| Duration P | 25.86 (19.79) | 14.83 (6.78) | 30.19 (9.49) | 14.59 (7.58) |
| Time P-QRS | 30.63 (10.62) | 26.99 (16.26) | 20.56 (11.50) | 13.87 (8.37) |
| Amplitude QRS | 18.62 (4.87) | 4.38 (1.85) | 9.76 (8.61) | 3.24 (2.00) |
| Duration QRS | 11.29 (7.88) | 6.37 (5.04) | 9.62 (9.33) | 4.89 (2.58) |
| Time QRS-T | 40.58 (20.12) | 31.05 (14.68) | 33.70 (15.90) | 20.10 (7.91) |
| Amplitude T | 47.01 (19.61) | 52.24 (43.02) | 53.36 (35.22) | 18.63 (5.53) |
| Duration T | 27.03 (9.86) | 12.06 (8.07) | 10.73 (7.80) | 11.54 (5.32) |
| Average | 31.70 (14.49) | 25.88 (15.09) | 26.24 (16.83) | 13.04 (5.83) |
aWICA: wavelet independent component analysis.
bRd-ICA: Redundant denoising Independent Component Analysis.
cItalicized values indicate the best performance in the dynamic time warping assessment.