Mezentseva L V
Biofizika. 2011 May-Jun;56(3):543-9.
Using a two-contour mathematical model, changes in the degree of heart rate variability induced by an increased extracardial impulsation in the sinoatrial node have been studied. The model is based on quantitative characteristics of impulse conduction in the cardiac conduction system. A mathematical and computer modeling revealed the following three regimes of heart rate variability: linear dynamics, the 1st-degree chaos, and the 2nd-degree chaos. Transitions between these regimes have been studied. A comparative analysis of the one- and two-contour models of heart rate regulation has been performed.
利用双轮廓数学模型，研究了窦房结中心外冲动增加所引起的心率变异性程度的变化。该模型基于心脏传导系统中冲动传导的定量特征。数学和计算机建模揭示了心率变异性的以下三种状态：线性动力学、一级混沌和二级混沌。已对这些状态之间的转变进行了研究。对心率调节的单轮廓和双轮廓模型进行了比较分析。
