The proposed algorithm provides a more accurate spectral representation of heart rate variability from ECG signals compared to existing methods.
May support spectral HRV research; leaves open clinical validation before ECG use.
We present a simple efficient algorithm for the derivation of a heart rate signal from the electrocardiogram. We demonstrate that the amplitude spectrum of this heart rate signal more closely matches that of the input signal to an integral pulse frequency modulation (IPFM) model of the heart's pacemaker than do the spectra of other ECG-derived heart rate signals. The applicability of this algorithm in cross-spectral analysis between heart rate and other physiologic signals is also discussed.
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Berger et al. (1986) studied this question.
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