Related Experiment Video
Updated: Aug 15, 2026

Assessing Cerebral Autoregulation via Oscillatory Lower Body Negative Pressure and Projection Pursuit Regression
Published on: December 10, 2014
[Analysis of variability of physiologic parameters using the Poincare plot]
1Ustav fyziológie, Jesseniova lekárska fakulta UK, Martin. Mjavorka@jfmed.uniba.sk
Abstract:
The noninvasive assessment of spontaneous temporal physiological parameters variations can provide valuable information about control systems involved in their complex regulations. Recently, in addition to conventional measures describing variability in time and frequency domains, methods based on nonlinear dynamics are increasingly used in physiology. The graphical analysis using Poincaré plot analysis with subsequent qualitative and quantitative analysis is one of them. The aim of this paper is to provide basic information about this method and its application in physiological research and clinical praxis.
Related Concept Videos
Regression Toward the Mean
Scatter Plot
Pareto Chart
The Pareto chart is named after the Italian economist Vilfredo Pareto, who described the Pareto...
Residual Plots
When the residual values are plotted against the variable x, it is called a residual...
Correlation between ECG and Cardiac Cycle
A cardiac action potential originates in the SA node and spreads throughout the atria and the AV node in approximately 0.03 seconds. This results in the P wave in an ECG and triggers atrial contraction. The action potential is then briefly slowed at the AV node, allowing the atria to contract and fill the ventricles with blood before...
Variability: Analysis
The range is a simple measure of variability, indicating the difference between the highest and...

