Browse by author
Lookup NU author(s): Emeritus Professor Alan MurrayORCiD
Full text for this publication is not currently held within this repository. Alternative links are provided below where available.
The ability to reliably measure phase between changes in heart rate and blood pressure is important when developing cardiovascular models.This study recorded 20 subjects breathing normally for periods of five minutes. RR intervals and systolic pressure (SP) levels were extracted from ECG and blood pressure signals. Phase was calculated using cross spectral analysis using four different windowing techniques.An analysis of variance showed that phase was not affected by windowing techniques. However, variance of phase reduced as window width reduced and the number of windows increased. We concluded that 5 Hanning windows of width 100 s (with 50% overlap) produce a good compromise between minimum variance and maximum frequency resolution.
Author(s): Bowers EJ, Murray A
Publication type: Conference Proceedings (inc. Abstract)
Publication status: Published
Conference Name: Computers in Cardiology 2005
Year of Conference: 2005
Online publication date: 06/02/2006
Library holdings: Search Newcastle University Library for this item