Improved integrate-and-fire model for rsa.
A simple operational model of heart rate variability is described, accounting in particular for the respiratory sinus arrhythmia, and is fitted to some interbeat interval sequences recorded from normal subjects at rest. The model performance is evaluated using a test based on the nonlinear prediction approach. Moreover, a short comparative account of two similar models described in the literature is given.
Barbi
Michele
M
Istituto di Biofisica, CNR, Via G. Moruzzi 1, 56124 - Pisa, Italy. barbi@pi.ibf.cnr.it
Garbo
Angelo Di
AD
Balocchi
Rita
R
D000293:Adolescent; D000328:Adult; D001146:Arrhythmia, Sinus / Q000503:physiopathology*; D001683:Biological Clocks / Q000502:physiology; D004562:Electrocardiography; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D008955:Models, Cardiovascular; D017574:Parasystole / Q000503:physiopathology; D013269:Stochastic Processes