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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