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

Percentage of differences between adjacent normal sinus to normal sinus interbeat (NN) intervals that are >30 ms

pnn30 under Clinical Data/Diagnostic Studies/Heart Rate Variability in CHAT variables

Percentage of differences between adjacent normal sinus to normal sinus interbeat (NN) intervals that are >40 ms

pnn40 under Clinical Data/Diagnostic Studies/Heart Rate Variability in CHAT variables

Percentage of differences between adjacent normal sinus to normal sinus interbeat (NN) intervals that are >50 ms

pnn50 under Clinical Data/Diagnostic Studies/Heart Rate Variability in CHAT variables

Very low frequency power: the normal sinus to normal sinus interbeat (NN) interval spectral power between 0.003 and 0.04 Hz

vlf under Clinical Data/Diagnostic Studies/Heart Rate Variability in CHAT variables

README.md

Multi-Ethnic Study of Atherosclerosis

... N01-HC-95169 from the National Heart, Lung, and Blood Institute, ... supported by the National Heart, Lung, and Blood Institute ... - Montage and Sampling Rate Information ## Heart Rate Variability (HRV) Analysis Read about ...

README.md

Sleep Heart Health Study

About The Sleep Heart Health Study (SHHS) is ... implemented by the National Heart Lung & Blood Institute ... increased risk of coronary heart disease, stroke, all cause ...

Extract RR intervals from datasets

Reply by madalenacosta on December 9, 2016 on Forum

... the units for the heart rate variability indices are milliseconds for ... the unites for instantaneous heart rate IHR is bpm; the ...

Low frequency power, non-overlapping windows: Normalized ratio

hfn_5m5 under Clinical Data/Diagnostic Studies/Heart Rate Variability/Non-Overlapping Windows in MESA variables

Low frequency power / high frequency power, non-overlapping windows

lf_hf_5m5 under Clinical Data/Diagnostic Studies/Heart Rate Variability/Non-Overlapping Windows in MESA variables

High frequency power, non-overlapping windows: Normalized ratio

lfn_5m5 under Clinical Data/Diagnostic Studies/Heart Rate Variability/Non-Overlapping Windows in MESA variables

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

MESA- HRV Analysis, Exclusion Criteria

Reply by sara22 on April 8, 2020 on Forum

... of Pacing and Electrophysiology, Heart rate variability (HRV) standards of measurement, ... and clinical use (European Heart Journal, 1996;17:354–81) but maybe ...

Low frequency power, full night: Normalized ratio

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