Purpose: study of #peculiarities of heart rate variability system in
excellent athletes with different level of stress resistance. Material:
22 excellent athletes, members of the #Vietnamese National Team Karate in
the research. The level of stress resistance (stress tolerance) was
determined by the results of test called "Stress Test” The athletes were
divided in two groups according to level of stress resistance. Were
used the #cardiac monitor «Polar RS800CX» for studied of heart rate
variability. Results: It revealed the increasing of level of stress
resistance related with improving the system of autonomic regulation of
heart rate in excellent athletes. This reflected by relaxation of level
of tension and activation of #parasympathetic part of #autonomous nervous
system. Were revealed the bigger meanings of LF/HF in athletes with
average level of stress resistance for concerning to athletes of high
level of stress resistance indicates the amplification of sympathetic
and weakening of parasympathetic link of autonomic nervous system [1].
The athletes with high stress resistance level has high of level of
heart rate variability and low of centralization of heart rate
regulation for compared to athletes with average level of stress
resistance.
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