Measurements related to frequency domain analysis of Heart Rate Variability
35 variables.
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VLF peak (Welch)
Very Low Frequency (VLF) band peak frequency, with PSD estimated using Fast Fourier transformation (FFT) based Welch's periodogram method, expressed in Hz
x0ec233LF peak (Welch)
Low Frequency (LF) band peak frequency, with PSD estimated using Fast Fourier transformation (FFT) based Welch's periodogram method, expressed in Hz
x0ec234HF peak (Welch)
High Frequency (HF) band peak frequency, with PSD estimated using Fast Fourier transformation (FFT) based Welch's periodogram method, expressed in Hz
x0ec235VLF power (Welch)
Absolute power of VLF band, with PSD estimated using Fast Fourier transformation (FFT) based Welch's periodogram method, expressed in ms^2
x0ec236LF power (Welch)
Absolute power of LF band, with PSD estimated using Fast Fourier transformation (FFT) based Welch's periodogram method, expressed in ms^2
x0ec237HF power (Welch)
Absolute power of HF band, with PSD estimated using Fast Fourier transformation (FFT) based Welch's periodogram method, expressed in ms^2
x0ec238total power (Welch)
Absolute power of the total spectrum, with PSD estimated using Fast Fourier transformation (FFT) based Welch's periodogram method, expressed in ms^2
x0ec239logVLF power (Welch)
Natural logarithm transformed values of VLF band, with PSD estimated using Fast Fourier transformation (FFT) based Welch's periodogram method
x0ec240logLF power (Welch)
Natural logarithm transformed values of LF band, with PSD estimated using Fast Fourier transformation (FFT) based Welch's periodogram method
x0ec241logHF power (Welch)
Natural logarithm transformed values of HF band, with PSD estimated using Fast Fourier transformation (FFT) based Welch's periodogram method
x0ec242logtot power (Welch)
Natural logarithm transformed values of total spectrum power, with PSD estimated using Fast Fourier transformation (FFT) based Welch's periodogram method
x0ec243VLF power (%) (Welch)
Relative power of VLF band, with PSD estimated using Fast Fourier transformation (FFT) based Welch's periodogram method, expressed in ms^2
x0ec244LF power (%) (Welch)
Relative power of LF band, with PSD estimated using Fast Fourier transformation (FFT) based Welch's periodogram method, expressed in ms^2
x0ec245HF power (%) (Welch)
Relative power of HF band, with PSD estimated using Fast Fourier transformation (FFT) based Welch's periodogram method, expressed in ms^2
x0ec246LF power (n.u.) (Welch)
Power of LF band in normalised units, LF [n.u.] = LF [ms2] / (total power [ms2] - VLF [ms2]) x 100%, with PSD estimated using Fast Fourier transformation (FFT) based Welch's periodogram method, expressed in n.u
x0ec247HF power (n.u.) (Welch)
Power of HF band in normalised units, HF [n.u.] = LF [ms2] / (total power [ms2] - VLF [ms2]) x 100%, with PSD estimated using Fast Fourier transformation (FFT) based Welch's periodogram method, expressed in n.u.
x0ec248LF-HF power (Welch)
Ratio between LF and HF band powers, with PSD estimated using Fast Fourier transformation (FFT) based Welch's periodogram method
x0ec249VLF peak (AR)
Very Low Frequency (VLF) band peak frequency, with PSD estimated using parametric autoregressive (AR) modeling method, expressed in Hz
x0ec250LF peak (AR)
Low Frequency (LF) band peak frequency, with PSD estimated using parametric autoregressive (AR) modeling method, expressed in Hz
x0ec251HF peak (AR)
High Frequency (HF) band peak frequency, with PSD estimated using parametric autoregressive (AR) modeling method, expressed in Hz
x0ec252VLF power (AR)
Absolute power of VLF band, with PSD estimated using parametric autoregressive (AR) modeling method, expressed in ms^2
x0ec253LF power (AR)
Absolute power of LF band, with PSD estimated using parametric autoregressive (AR) modeling method, expressed in ms^2
x0ec254HF power (AR)
Absolute power of HF band, with PSD estimated using parametric autoregressive (AR) modeling method, expressed in ms^2
x0ec255total power (AR)
Absolute power of the total spectrum, with PSD estimated using parametric autoregressive (AR) modeling method, expressed in ms^2
x0ec256logVLF power (AR)
Natural logarithm transformed values of VLF band, with PSD estimated using parametric autoregressive (AR) modeling method
x0ec257logLF power (AR)
Natural logarithm transformed values of LF band, with PSD estimated using parametric autoregressive (AR) modeling method
x0ec258logHF power (AR)
Natural logarithm transformed values of HF band, with PSD estimated using parametric autoregressive (AR) modeling method
x0ec259logtot power (AR)
Natural logarithm transformed values of total spectrum power, with PSD estimated using parametric autoregressive (AR) modeling method
x0ec260VLF power (%) (AR)
Relative power of VLF band, with PSD estimated using parametric autoregressive (AR) modeling method, expressed in ms^2
x0ec261LF power (%) (AR)
Relative power of LF band, with PSD estimated using parametric autoregressive (AR) modeling method, expressed in ms^2
x0ec262HF power (%) (AR)
Relative power of HF band, with PSD estimated using parametric autoregressive (AR) modeling method, expressed in ms^2
x0ec263LF power (n.u.) (AR)
Power of LF band in normalised units, LF [n.u.] = LF [ms2] / (total power [ms2] - VLF [ms2]) x 100%, with PSD estimated using parametric autoregressive (AR) modeling method, expressed in n.u
x0ec264HF power (n.u.) (AR)
Power of HF band in normalised units, HF [n.u.] = LF [ms2] / (total power [ms2] - VLF [ms2]) x 100%, with PSD estimated using parametric autoregressive (AR) modeling method, expressed in n.u.
x0ec265LF/HF power (AR)
Ratio between LF and HF band powers, with PSD estimated using parametric autoregressive (AR) modeling method
x0ec266EDR (ECG Derived Respiration)
EDR (ECG Derived Respiration), expressed in Hz
x0ec267