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The indexes of central haemodynamics, oscillations power of the struck blood volume and R-R interval duration in different frequency ranges as well as the levels of blood filling of chest organs were measured in 143 healthy young men at rest and during tilt test. Based on the formation of different levels of blood filling of chest organs, two strategies ofhaemodynamics adapting changes were found in healthy men. The high level of blood filling of chest organs is characterized by the higher level of heart throw, which results in an increase in the average arterial pressure. The increase of the general peripheral vessel resistance and rather low level of heart throw was typical for the low level of blood filling of the chest organs. Individuals with middle level of blood filling of chest organs were found to have more essential strain regulatory mechanisms than individuals of the edge groups according to the parameters of the struck blood volume oscillations and the R-R intervals duration at rest and during tilt test.

THE PECULIARITIES OF THE CENTRAL HAEMODYNAMICS AND ITS OSCILLATIONS IN INDIVIDUALS WITH DIFFERENT LEVEL OF BLOOD FILLING OF CHEST ORGANS