Impact of whole body cryotherapy on adaptive reactions of human organism

Abstract

One of the features of all living organisms is constant maintenance of this internal state - homeostasis. Human organism is always impacted with constantly changing external environment and internal factors. That's why a lot of adaptation mechanisms, that support normal functions of organism were formed during evolution. Human body's reaction to the environmental impact is difficult, complex, involving reactions from many systems functions. In the middle of Sixteenth century Vesalius noted, that there are several systems characterized by unique characteristics in human body. These systems, whose structures include the whole human organism: skeletal - muscular system (V), cardiovascular system (supplying system - A) and regulatory system (R). These three systema are called holistic. When organism is adapting to changing environment, all three systems react in conjunction (in different form and degree) and a whole body reaction is always a result of cumulative response of these three systems. Totality of holistic systems results in system complexity in structural and functional manner. Speaking about human body, as a complex system and its properties, the main structure which affects functionality of whole organism in many levels is cardiovascular system. Looking at the human organism as an adaptive integrated system, cardiovascular system is "convenient" system, which interacts with all organism systems and represents all of its functionality with electrical processes (ECG), ECG represents functioning of the heart in all of its levels. Assessment of the parameters is important not only for their size, transitions, but for the relationship between these parameters also. The methodology used allows an assessment of what responses there are in the body in accordance with changes in the parameters and their relationship, during certain actions to that body. The aim - to evaluate the effects of the whole body cryotherapy procedure to a human organism as a complex adaptive system according to some ECG parameters and their relation changes as a reaction to the irritant effects of the whole body cryotherapy procedure.