THE REACTIONS OF PUMPING FUNCTION OF THE 5-16-YEAR-OLD CHILDREN AND TEENAGERS’S HEARTS DURING FUNCTIONAL LOADS

Abstract: 

The characteristics of cardiac activity of 5-16-year-old children and teenagers were studied during or-thostatic test and ergometric bicycle exercises with increasing loads. The hemodynamic parameters such as heart rate (HR), increasing stroke and minute volumes of blood were considered. The study showed that the physiological reaction of all tested groups underwent changes in all indices of central hemody-namics. The pumping function of the heart in all tested groups increased with rising load and its duration. 

Key words: 

cardiac activity, orthostatic test, ergometric bicycle exercise, hemodynamic parameters, heart rate, physiological reaction, pumping function of the heart.

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