Measurement of signal period on a personal microcomputer and its application to the analysis of cardiac interval and blood pressure.
Personal microcomputers interfaced with analog-digital converters are capable of analyzing almost any biological signal, yet are limited in their ability to directly measure a signal's period/frequency. We describe a short program which measures the interval between periodic events up to 3.5 Hz. In addition, an expanded program which calculates the frequency distribution, distribution statistics, and cross regressions of cardiac interval and blood pressure is described.
Van Vliet
B N
BN
Department of Physiology, College of Medicine, University of Saskatchewan, Saskatoon, Canada.
West
N H
NH
Road
J D
JD
D000703:Analog-Digital Conversion; D001794:Blood Pressure; D003201:Computers; D006339:Heart Rate; D006801:Humans; D008838:Microcomputers; D012044:Regression Analysis; D012815:Signal Processing, Computer-Assisted; D012984:Software; D012985:Software Design