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Table 5 HRV indices derived from ECG lead I and SCG signal presented as mean and standard deviation (SD) on recordings m001–m020

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]

868.4482

107.7381

868.4494

107.7377

874.4701

108.1814

SDNN [ms]

66.7848

27.6628

69.4776

27.2620

146.1656

259.5451

RMSSD [ms]

54.2829

33.0621

63.9567

31.9611

177.9677

335.4112

NN50

699.5000

375.9997

1051.6500

480.1267

1223.8000

689.7342

pNN50

0.2068

0.1085

0.3098

0.1433

0.3621

0.2137

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

564,775.7879

150,123.2398

564,774.1763

150,124.8666

560,361.6889

153,743.7541

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

2730.3091

1914.1473

3076.3276

150,124.8666

7566.0048

8040.7530

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

565,323.1825

150,225.7814

565,321.7553

150,228.3664

561,047.5560

153,853.2790

LF/HF

0.9990

0.0005

0.9990

0.0005

0.9987

0.0008