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Table 8 Correlation between HRV indices obtained from ECG and SCG on recordings b001–b020

From: Comparison of HRV indices obtained from ECG and SCG signals from CEBS database

HRV index \(R^2\) (reference algorithm) \(R^2\) (tested algorithm)
Mean NN 1.0000 0.9925
SDNN 0.9263 0.0533
RMSSD 0.5983 0.0546
NN50 0.3566 0.0133
pNN50 0.3854 0.0168
\({{\text{PSD}}}_{{\text{LF}}}\) 1.0000 0.9844
\({{\text{PSD}}}_{{\text{VLF}}}\) 0.9379 0.0416
\({{\text{PSD}}}_{{\text{HF}}}\) 1.0000 0.9862
LF/HF 0.9977 0.0360