Izvestiya of Saratov University.
ISSN 1817-3020 (Print)
ISSN 2542-193X (Online)


vascular tone

Dynamic and Spectral Characteristics of Time Series Describing Pulse Wave Velocity

We analyze the dynamic and spectral characteristics of the signals that reflects the rapid changes in pulse wave velocity (PWV). We describe the characteristics of PWV signal in the high frequency HF range (from 0.1 to 0.5 Hz) and suggest a simple model that illustrates our hypotheses.

Mathematical Model of Vascular Tone Autoregulation

Background and Objectives: The conventional approach to study the blood circulat ion in the cardiovascular system of humans and animals is based on representation of the vascular system as a hierarchical structure of branching elastic tubes. While considerable progress has been achieved in the framework of this p aradigm, the other fails when one needs to analyze the dynamical patterns in networks of small arterial vessels.