Discriminant analysis application for the visualization of the functional state individual dynamics of the Russian Antarctic Expedition participant

Abstract

The article presents the assessment of the functional state's individual 18-week dynamics in the extreme climatic and geographical conditions of Antarctica with visualization of the results obtained based on complex indices. A modification of R.M. Baevsky's model is used, based on the results of a discriminant analysis of human states under three distinctly different conditions, incorporating not only heart rate variability but also systolic blood pressure. The results are presented on a phase plane, divided into four quadrants: physiological norm, pre-clinical conditions, pre-morbid conditions, and pathological conditions. The provided illustrations suggest that this approach has potential for monitoring projects and in the field of environmental physiology.