Table 4 HRV indices derived from ECG lead I and SCG signal presented as mean and standard deviation (SD) on recordings b001–b020
From: Comparison of HRV indices obtained from ECG and SCG signals from CEBS database
HRV index | ECG | SCG (reference algorithm) | SCG (tested algorithm) | |||
|---|---|---|---|---|---|---|
Mean | SD | Mean | SD | Mean | SD | |
Mean NN [ms] | 880.6236 | 102.1249 | 880.6352 | 102.1375 | 877.9416 | 100.0651 |
SDNN [ms] | 55.3286 | 18.0816 | 58.8625 | 16.7121 | 92.5927 | 55.8870 |
RMSSD [ms] | 18.4905 | 21.1768 | 59.2054 | 20.4972 | 116.8905 | 100.4839 |
NN50 | 74.8000 | 46.9093 | 107.8000 | 42.1059 | 138.2500 | 84.8211 |
pNN50 | 0.2240 | 0.1408 | 0.3233 | 0.1319 | 0.4099 | 0.2501 |
\({{\text{PSD}}}_{{\text{LF}}}\) [\(\text {ms}^{2}\)] | 616,229.8079 | 155,950.1659 | 612,073.3519 | 155,948.3816 | 612,073.3519 | 154,059.9771 |
\({{\text{PSD}}}_{{\text{VLF}}}\) [ms2] | 2962.8256 | 2308.0362 | 3301.8585 | 2148.7678 | 10,018.8269 | 15,211.3318 |
\({{\text{PSD}}}_{{\text{HF}}}\) [\(\text {ms}^{2}\)] | 616,714.3314 | 155,958.1736 | 616,713.8099 | 155,953.0616 | 612,867.8984 | 153,989.0784 |
LF/HF | 0.9992 | 0.0006 | 0.9992 | 0.0006 | 0.9986 | 0.0022 |