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Last updated
Tue Mar 27 23:03:54 2007

Plugin hrv

Namehrv -- calculate heart rate variability (HRV) parameters
Version0.2.0
AuthorRaphael Schneider (rasch@med1.med.tum.de)
Description The plugin calculates the heart rate variability (HRV) parameters. In the time domain the parameters, which are recommended from the Task Force for HRV, are calculated. The parameters from the frequency domain are calculated on the power-spectrum of the complete tachogram using FFT.
Remarks
TypePLUGIN_PROCESS
LicenseLICENSE_LGPL
Status0

Usage

Options

use_start_end_pos (long) use events between start_pos and end_pos
start_pos (long) start-pos in sample-units
end_pos (long) end-pos in sample-units
use_start_end_event (long) use events from start_event to end_event
start_event (long) start-event
end_event (long) end-event
num_events (long) use the events listed in events
events (long array) list of events to use
use_user_freq_band (long) calculate also the power in the user-selected frequency band
user_freq_start (double) start of user-selected frequency band [Hz]
user_freq_end (double) end of user-selected frequency band [Hz]
skip_time_domain (long) do not calculate HRV in the time domain
skip_freq_domain (long) do not calculate HRV in the frequency domain

Results

SDNN (double) standard deviation of normal-to-normal intervals
HRVI (double) HRV-Index
SDANN (double) standard deviation of averaged normal-to-normal intervals
rmssd (double) root mean of squared sucsessive differences
pNN50 (double)
TP (double) total power
ULF (double) ultra low frequency power
VLF (double) very low frequency power of short-term recordings
LF (double) low frequency power
LF_NORM (double) normalised low frequency power
HF (double) high freuqency power
HF_NORM (double) normalised high frequency power
LF_HF_RATIO (double) LF/HF ratio
POWER_LAW (double) power law behavior
TACHO_INDEX (long array) Event numbers used for HRV calculations
USER_BAND (double) frequency power in a user-selected frequency band