Novosibirskiy nacional'nyy issledovatel'skiy gosudarstvennyy universitet
Correct and objective assessment of the capabilities of the cardiovascular system athletes, the development of quantitative criteria for this assessment is necessary for maintaining their health is an indispensable condition for a scientifically based training process, one of the goals of which is the correct choice of game role of a hockey player. The article presents a study on the functional state of the cardiovascular system of adolescent hockey players aged 13–14 years, depending on their playing role (defenders and forwards) with an orthostatic test. 50 people took part in the study. Heart rate variability registration was carried out in accordance with international and domestic recommendations using VNS-Micro (Neurosoft, Ivanovo, Russia) in two stages: 1) in a sitting position (5 min); 2) when moving to a standing position (6 min). Mathematical processing and presentation of the research results were carried out using the full package of functions of Word, Excel and Statistica for Windows. Method of mathematical statistics: Student’s t-test for independent samples. Normal distribution was confirmed by the three-sigma rule. A study of a few temporal and spectral indicators of heart rate variability in adolescent hockey players depending on their playing role showed the following. Thus, the conducted study of the autonomic regulation and reactivity of the cardiovascular system of adolescent hockey players, depending on the playing role, revealed that in the resting mode, defenders have a predominant activity of the parasympathetic department of the autonomic nervous system, the cardiovascular system operates in a more economical mode compared to the attackers. Under the conditions of an orthostatic test, almost the same level of reactivity of the cardiovascular system was revealed in hockey players with different playing roles. The results obtained from the study can be used to preserve the health of athletes, as well as in the process of sports orientation and selection at the early stages of training.
hockey, orthostatic test, spectral analysis indicators, athletes’ health
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