heart rate variability - Search - Sleep Data - National Sleep Research Resource

Normal-to-normal intervals, non-overlapping windows: Standard deviation

sdnn_5m5 under Clinical Data/Diagnostic Studies/Heart Rate Variability/Non-Overlapping Windows in MESA variables

Normal-to-normal intervals up to 0.04 Hz, non-overlapping windows: Total spectral power

totpwr_5m5 under Clinical Data/Diagnostic Studies/Heart Rate Variability/Non-Overlapping Windows in MESA variables

Detrended fluctuation analysis, short term

hvdfalpha1 under Clinical Data/Diagnostic Studies/Heart Rate Variability in MROS variables

For short term correlations in short time scales corresponding to log of 10 < t < 40 beats

Detrended fluctuation analysis, long term

hvdfalpha2 under Clinical Data/Diagnostic Studies/Heart Rate Variability in MROS variables

For long term correlations in long time scales corresponding to log of 70 < t < 300 beats

Normal-to-normal intervals, non-overlapping windows: Mean

avnn_5m5 under Clinical Data/Diagnostic Studies/Heart Rate Variability/Non-Overlapping Windows in MESA variables

Adjacent normal-to-normal intervals, non-overlapping windows: Square root of the mean of the squares of differences

rmssd_5m5 under Clinical Data/Diagnostic Studies/Heart Rate Variability/Non-Overlapping Windows in MESA variables

Normal-to-normal intervals between 0.15 and 0.4 Hz, non-overlapping windows: Total spectral power

hf_5m5 under Clinical Data/Diagnostic Studies/Heart Rate Variability/Non-Overlapping Windows in MESA variables

Consecutive normal-to-normal intervals / all inter-beat intervals, non-overlapping windows

nn_rr_5m5 under Clinical Data/Diagnostic Studies/Heart Rate Variability/Non-Overlapping Windows in MESA variables

Adjacent normal-to-normal intervals, non-overlapping windows: Percentage of differences > 10 ms

pnn10_5m5 under Clinical Data/Diagnostic Studies/Heart Rate Variability/Non-Overlapping Windows in MESA variables

Adjacent normal-to-normal intervals, non-overlapping windows: Percentage of differences > 20 ms

pnn20_5m5 under Clinical Data/Diagnostic Studies/Heart Rate Variability/Non-Overlapping Windows in MESA variables

Adjacent normal-to-normal intervals, non-overlapping windows: Percentage of differences > 30 ms

pnn30_5m5 under Clinical Data/Diagnostic Studies/Heart Rate Variability/Non-Overlapping Windows in MESA variables

Adjacent normal-to-normal intervals, non-overlapping windows: Percentage of differences > 40 ms

pnn40_5m5 under Clinical Data/Diagnostic Studies/Heart Rate Variability/Non-Overlapping Windows in MESA variables

Adjacent normal-to-normal intervals, non-overlapping windows: Percentage of differences > 50 ms

pnn50_5m5 under Clinical Data/Diagnostic Studies/Heart Rate Variability/Non-Overlapping Windows in MESA variables

Low frequency power, full night: Normalized ratio

hfn_fn5 under Clinical Data/Diagnostic Studies/Heart Rate Variability/Full Night in MESA variables

Low frequency power / high frequency power, full night

lf_hf_fn5 under Clinical Data/Diagnostic Studies/Heart Rate Variability/Full Night in MESA variables

High frequency power, full night: Normalized ratio

lfn_fn5 under Clinical Data/Diagnostic Studies/Heart Rate Variability/Full Night in MESA variables

Normal-to-normal intervals, full night: Standard deviation

sdnn_fn5 under Clinical Data/Diagnostic Studies/Heart Rate Variability/Full Night in MESA variables

Normal-to-normal intervals up to 0.04 Hz, full night: Total spectral power

totpwr_fn5 under Clinical Data/Diagnostic Studies/Heart Rate Variability/Full Night in MESA variables

Normal-to-normal intervals up to 0.003 Hz, full night: Total spectral power

ulf_fn5 under Clinical Data/Diagnostic Studies/Heart Rate Variability/Full Night in MESA variables

Normal-to-normal intervals between 0.04 and 0.15 Hz, non-overlapping windows: Total spectral power

lf_5m5 under Clinical Data/Diagnostic Studies/Heart Rate Variability/Non-Overlapping Windows in MESA variables

Normal-to-normal intervals between 0.003 and 0.04 Hz (and between 0 and 0.04 Hz in 5-minute windows), non-overlapping windows: Total spectral power

vlf_5m5 under Clinical Data/Diagnostic Studies/Heart Rate Variability/Non-Overlapping Windows in MESA variables

Normal-to-normal intervals, full night: Mean

avnn_fn5 under Clinical Data/Diagnostic Studies/Heart Rate Variability/Full Night in MESA variables

Adjacent normal-to-normal intervals, full night: Square root of the mean of the squares of differences

rmssd_fn5 under Clinical Data/Diagnostic Studies/Heart Rate Variability/Full Night in MESA variables

Normal-to-normal intervals in all 5-minute segments, full night: Mean of the standard deviations

sdnnidx_fn5 under Clinical Data/Diagnostic Studies/Heart Rate Variability/Full Night in MESA variables

Normal-to-normal intervals between 0.15 and 0.4 Hz, full night: Total spectral power

hf_fn5 under Clinical Data/Diagnostic Studies/Heart Rate Variability/Full Night in MESA variables