Abstract:
The article presents the peculiarities of adaptive reactions of heart work to functional tests in young badminton players and children not engaged in sports at the age of 8-12 years. Continuous recording of electrocardiogram registration of children during the whole research protocol was carried out. It was shown that there are reliable changes of electrocardiographic parameters of heart work on active orthostatic test, as well as on the test with breath-holding. The analysis of electrocardiogram showed the presence of adaptive mechanisms of cardiovascular system of badminton players at the initial stage of sports training, it reflects a higher level of body fitness and contractility of the heart.
