title: Improved integrate-and-fire model for rsa.
abstract: 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.
authors.affiliation: Istituto di Biofisica, CNR, Via G. Moruzzi 1, 56124 - Pisa, Italy. barbi@pi.ibf.cnr.it
authors.forename: Michele
authors.initials: M
authors.lastname: Barbi
authors.forename: Angelo Di
authors.initials: AD
authors.lastname: Garbo
authors.forename: Rita
authors.initials: R
authors.lastname: Balocchi
mesh_terms: 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