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Table 9 Correlation between HRV indices obtained from ECG and SCG on recordings m001–m020

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 0.9249
SDNN 0.9263 0.5507
RMSSD 0.5983 0.4898
NN50 0.1791 0.1166
pNN50 0.2137 0.1580
\({{\text{PSD}}}_{{\text{LF}}}\) 1.0000 0.9846
\({{\text{PSD}}}_{{\text{VLF}}}\) 0.8967 0.0009
\({{\text{PSD}}}_{{\text{HF}}}\) 1.0000 0.9846
LF/HF 0.9996 0.4296