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

fYear

1997

fDate

7-10 Sep 1997

Firstpage

407

Lastpage

410

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Computers in Cardiology 1997

Conference_Location

Lund

ISSN

0276-6547

Print_ISBN

0-7803-4445-6

Type

conf

DOI

10.1109/CIC.1997.647919

Filename

647919