Małgorzata Żebrowska
supervisor: Jan Jacek Żebrowski
Disorders of body homeostasis caused by exercise are one of the factors causing adaptive changes in individual organs, physiological systems and comprehensively throughout the body. One of the currently used methods that allows to analyze the body's reaction to the given effort are the cardiopulmonary exercise tests (CPET). The scope of the study includes the identification of physiological nonlinear markers that can be used as non-invasive diagnostic tools to describe the adaptation processes occurring during physical effort. The projects conducted so have confirmed the usefulness of symbolic transfer entropy and the Hill’s model of oxyhemoglobin concentration in a protocol with increasing load to maximum fatigue in young and healthy people. The aim of the last project is to verify the hypothesis about the applicability of multivariate non-linear methods in CPET research. We will assess whether it is possible to present the body's adaptation to the effort without introducing the subject to the maximum load phase resulting in the refusal to continue the test. The test is based on the non-invasive measurement of the respiratory, cardiovascular (ECG) and muscular (non-invasive near infrared spectroscopy) responses to medium exercise during exercise on a bicycle ergometer. Currently, data recording in the Laboratory of Effort at the Faculty of Physics on a group of 20 people has been completed. The obtained time series are in the analysis phase.