Presenter Zinaida Kuznetsova, PhD, Professor - Povozhskaya State Academy of Physical Culture, Sports and Tourism (College) (Physical Culture and Sports) - RU
Chulpan Gizatullina, PhD, Associate Professor - Povozhskaya State Academy of Physical Culture, Sports and Tourism (College) (Physical Culture and Sports) - RU
Ilsiar Mutaeva, Phd, Professor - Povozhskaya State Academy of Physical Culture, Sports and Tourism (College) (Physical Culture and Sports) - RU
Background:Relevance. Increased heart rate indicates that the heart is working actively and therefore more intensively
pumping blood. But too heavy loads can adversely affect the cardiovascular system and the functioning of the organism as a whole. The aim of this work was the study of central hemodynamics at various
Methods and organization studies. Experimental work was carried out in the period from 2010 to 2012. on the basis of the college. The study involved athletes, training in sprint , 40 ( 17- 22 years).
Results of the study. Heart rate varies proportionally to the muscle work, while achieving moderate physical exercise capacity from 90 to 120 beats / min. Indicators of athletes with normorkinetic
type blood circulation ( control and experimental group) increased from baseline to 51.25 and 48.75 beats / min, respectively. Indicators of athletes with hyperkinetic and hypokinetic blood
circulation (control and experimental group) increased from baseline to 48.72 and 45.67 beats. min respectively. Heart rate response of EG athletes to moderate loads is less than of CG and the
changes after the experimental procedure are fearly significant ( 0.05). Hyperkinetic type athletes heart rate in the CG and EG was 121,00 ± 4,26 and 112,06 ± 4,57 beats / min. In the EG the
principle of "minimum ensure of the function integrity."is carried out. When using maximum power load the heart rate in all groups of athletes increased to a reliable value in comparison with
moderate load capacity. The greatest heart rate indicators occurred in the hyperkinetic and normorkinetic type of CG athletes ( 49.06 and 50.7 beats. min ). When using maximum power load
hyperkinetic type athletes (CG and EG ) showed a significant increase of heart rate indicators ( 170,06 ± 5,22 and 158,00 ± 6,88 beats / min.). The greatest HR indicators increase was also observed
in the group normorkinetic and hypokinetic type of EG athletes ( 46 and 53.00 beats / min.).
Thus, from the initial level to maximum load capacity athletes heart rate is gradually increasing. The EG athletes reaction to varying load capacity improved significantly after the experimental
technique using. A favorable reaction to the load in the EG of hyperkinetic type athletes is created. When using moderate load capacity together with an increase in heart rate stroke volume increase
is observed in all groups of athletes at the start and the end of the experiment. In all groups of athletes ( CG and EG) two types of stroke volume blood change meets. Increasing the power of load
is not accompanied by growth of stroke volume.
In the CG group of hyperkinetic type athletes reduction of stroke volume is observed when heart rate indicators are increased. There is further increase of stroke volume and consequently an increase
of the minute volume of blood. After the load there was a minute volume of blood increase especially in normorkinetic type athletes. Two mechanisms of moderate power loads affect on the minute volume
of blood : increasing stroke blood volume and quickening the heart rate.