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Table 6 HRV indices derived from ECG lead I and SCG signal presented as mean and standard deviation (SD) on recordings p001–p020

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] 881.2197 102.3434 881.2311 102.3560 879.9381 100.3830
SDNN [ms] 55.6498 17.7449 58.9799 16.5574 84.3181 34.9819
RMSSD [ms] 48.4851 21.1828 58.4208 21.0497 103.2012 69.7998
NN50 168.1500 23.8311 167.8500 22.4365 132.8000 81.0884
pNN50 0.4899 0.0414 0.4892 0.0347 0.3911 0.2336
\({{\text{PSD}}}_{{\text{LF}}}\) [\(\text {ms}^{2}\)] 616,967.1499 156,145.0747 616,968.3450 156,144.2675 616,229.7384 153,878.4562
\({{\text{PSD}}}_{{\text{VLF}}}\) [\(\text {ms}^{2}\)] 2974.3376 2298.2310 3300.7693 2145.1549 7458.9407 7783.3257
\({{\text{PSD}}}_{{\text{HF}}}\) [\(\text {ms}^{2}\)] 617,450.7037 156,152.3237 617,453.1540 156,148.1566 616,747.0991 153,885.5876
LF/HF 0.9992 0.0006 0.9992 0.0006 0.9991 0.0006