Catastrophes instantaneous heart rate in the model multifractal dynamics and based on the data of Holter monitoring

In this paper, based on the analysis of specific Holter monitoring data, the phenomenon of the presence of great jumps of instant heart rate (IHR) was found.
Within the framework of the multifractal dynamics model (MFD), the mathematical nature of this phenomenon was identified.
It has been shown that IHR fractal dimension $D$ before the jump should reach the value which is close to $D_b$ value calculated in the MFD model at the bifurcation point.
The IHR data and MFD parameter calculation results are shown in tabular form and compared with states of the cardiovascular system in different patients.