title: Change in impulse response of heart rate to instantaneous lung volume.
abstract: A method is presented that relates the heart rate variability (HRV) to the change in instantaneous lung volume (ILV) under non-stationary conditions. Methods utilizing a recursive least squares (RLS) algorithm and a modified Widrow LMS algorithm are proposed to keep track of changes in impulse response of HRV to ILV. Results are presented of real data analysis and a dedicated system is proposed utilizing DSP chips for the real time data processing.
authors.affiliation: Department of Electrical Engineering, Hosei University, Tokyo, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Mizuta
authors.forename: Y
authors.initials: Y
authors.lastname: Iida
authors.forename: K
authors.initials: K
authors.lastname: Yana
authors.forename: J P
authors.initials: JP
authors.lastname: Saul
authors.forename: R J
authors.initials: RJ
authors.lastname: Cohen
mesh_terms: D000465:Algorithms; D004562:Electrocardiography; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D008176:Lung Volume Measurements; D008297:Male; D008954:Models, Biological; D011187:Posture / Q000502:physiology; D012016:Reference Values