Pulse wave reflection index in young athletes

Индекс отражения пульсовой волны у юных спортсменов

Abstract

The results of the analysis of the pulse wave reflection indices, measured according to the dependences of pressure in the arterial bed by the method of sphygmography in the region of the brachial artery, are presented. It has been established that, compared with the group of untrained subjects, the reflection indices measured in athletes showing high athletic performance after removal of the shoulder cuff occlusion have higher values than before occlusion. In young athletes, the cardiovascular system undergoes functional changes, which is associated with an increase in the vasodilator capacity of the vessels and an increase in vasoconstriction. The change in the reflection index is characterized by non-monotonic dynamics, which manifests itself in the initial growth, and then a decrease to a value close to the original one. The relationship between the amplitude of the backward wave and the functional properties of the smooth muscle layer of the arterial vessels of athletes and the possible influence of the thickness of the endothelial glycocalyx on the results of the occlusion test are discussed.