The Dynamical concatenations of electrocardiographic parameters at the anaerobic threshold

Abstract

Research background. Advanced nonlinear methods of measuring interactions of the cardiac parameters, derived from the mathematics of complex dynamics and fractal geometry have provided new insights into the abnormalities of cardiac nbehavior in various conditions. An anaerobic threshol has been an important index of performance for assessing cardiopulmonary and muscle integration during aerobic exercise. The analysis of electrocardiographic parameters concatenations can be used to describe the physiological changes in the whole body during physical load. Research aim was to evaluate the concatenations of electrocardiographic parameters in different physical ability men group at the aerobic thereshold during bicycle ergometry. Research methods. It was created and tested new algorithm, based on two signals cointegration to matrixes sequences, for the analysis of signals and their parameters dynamical concatenations, changes of their mutual relations. Complexity measure, reflecting the degree of coupling between variables, was expressed as the value of discriminant. [...].