Title :
Modelling the shift of the low frequency component of heart rate variability
Author :
Raymond, B. ; Mazumdar, J. ; Nandagopal, D.
Author_Institution :
Adelaide Univ., SA, Australia
Abstract :
The effects of passive tilt on the power spectrum of heart rate variability was studied in healthy subjects. A significant decrease from 0.10 to 0.087 Hz of the centre frequency of the low frequency component of the power spectrum was observed with tilt. In order to better understand the nature of this frequency shift, a multivariate model of the effects of respiration and blood pressure on heart rate was applied to data from one individual. The contribution to the LF component of the HRV power spectrum by blood pressure variations was found to be responsible for the frequency shift
Keywords :
blood pressure measurement; electrocardiography; medical signal processing; physiological models; spectral analysis; 0.087 Hz; 0.10 Hz; ECG analysis; blood pressure variations; electrodiagnostics; frequency shift; healthy subjects; heart rate variability power spectrum; low frequency component shift modelling; multivariate model; passive tilt effects; respiration effects; systolic blood pressure; Blood pressure; Cardiology; Electrocardiography; Frequency; Hafnium; Heart rate; Heart rate variability; Interpolation; Pressure control; Signal processing;
Conference_Titel :
Computers in Cardiology 1997
Conference_Location :
Lund
Print_ISBN :
0-7803-4445-6
DOI :
10.1109/CIC.1997.647919
