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Table 7 HRV indices derived from ECG lead I and SCG signal presented as mean and standard deviation (SD) on all analyzed recordings

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]

876.7638

102.4935

876.7719

102.5018

874.4701

108.1814

SDNN [ms]

59.2544

21.9539

62.4400

21.0417

146.1656

259.5451

RMSSD [ms]

50.4195

25.4661

62.4400

24.7629

177.9677

335.4112

NN50

688.3000

754.5296

686.0833

750.9212

1223.800

689.7342

pNN50

0.4919

0.0366

0.4924

0.0353

0.3621

0.2137

\({{\text{PSD}}}_{{\text{LF}}}\) [\(\text {ms}^{2}\)]

599,324.2486

153,454.5209

607,119.5110

161,038.1290

560,361.6889

153,743.7541

\({{\text{PSD}}}_{{\text{VLF}}}\) [\(\text {ms}^{2}\)]

2889.1574

2146.9039

3226.3185

2003.5468

7566.0048

8040.7530

\({{\text{PSD}}}_{{\text{HF}}}\) [\(\text {ms}^{2}\)]

599,829.4059

153,486.9967

607,626.5532

161,052.9574

561,047.5560

153,853.2790

LF/HF

0.9991

0.0006

0.9991

0.0006

0.9987

0.0008