HEART RATE VARIABILITY: CLASSIFICATION AND DYNAMIC SYSTEM ANALYSIS
Journal: The Journal of V.N. Karazin Kharkiv National University, series "Medicine" (Vol.11, No. 11)Publication Date: 2005-12-30
Authors : A.V. Martynenko; M.I. Yabluchansky;
Page : 10-18
Keywords : heart rate variability; nonlinear dynamic process; classification; M-indexes;
- THE RELATION BETWEEN CLINICAL SIGNS, PARAMETERS OF HEART RATE VARIABILITY AND FUNCTION OF EXTERNAL BREATHING IN THE PATIENT WITH CHRONIC OBSTRUCTIVE PULMONARY DISEASE BEFORE AND AFTER THERAPY
- HEART RATE VARIABILITY AND FUNCTION OF EXTERNAL BREATHING IN THE PATIENTS WITH CHRONIC OBSTRUCTIVE LUNG DISEASE
- HEART RATE VARIABILITY PARAMETERS DURING TREATMENT IN PATIENTS WITH CHRONIC OBSTRUCTIVE PULMONARY DISEASE
- DINAMICS OF BLOOD PRESSURE AND HEART RATE VARIABILITY PARAMETERS DURING BIOFEEDBACK IN LOOP OF HEART RATE VARIABILITY AND PACED BREATHING IN PATIENTS WITH DIFFICULT-TO-CONTROL ARTERIAL HYPERTENSION ON THE BACKGROUND OF DRUG
- DYNAMIC CHANGES IN SPECTRAL HEART RATE VARIABILITY PARAMETERS IN PACED BREATHING TEST IN PATIENT WITH UNCONTROLLED ARTERIAL HYPERTENSION AND POLYMORBIDITY
Abstract
The proposed classification of dynamic HRV processes is based on M-indexes: |М|<0.03 ? linear, station-ary; 0.3>|М|>0.03 ? weakly nonlinear, quasi stationary; 3>|М|>0.3 ? nonlinear, transient; |М|>3 ? strongly nonlinear, transient. The character of M-index gives following interpretation for direction of dynamic HRV process (integrated for analyzing record): ?+? ? accelerating; ??? ? decelerating. Thus M-indexes introduce generalized basis for allocation of HRV stationary processes: М0 indexes ? determine as stationary the whole class on inertial movements in HRV, i.e. movement with constant speed or stochastic vibrations around un-changed frequency; М1 indexes ? determine as stationary the whole class of periodical and quasi periodical movements in HRV, the movements which keep constant phase flow what can be achieved by introducing of time arrow; М indexes ? consider the whole system of appointed above stationary processes in HRV.
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