(2022) Science and education, 2, 61-68. Odessa.

Yevhen Mykhaliuk,
Doctor of Medicine, Professor,
Head of the Department of Physical Rehabilitation, Sports Medicine, Physical Education and Health,
Zaporizhzhia State Medical University,
26, Mayakovsky ave., Zaporizhzhia, Ukraine,
ORCID ID: https://orcid.org/0000-0003-3607-7619

Yehor Horokhovskyi,
Candidate of Biological Sciences,
Associate Professor at the Department of Physiology, Immunology, and Biochemistry
with a Course of Civil Defense and Medicine,
Zaporizhzhia National University,
66, Zhukovsky str., Zaporizhzhia, Ukraine,
ORCID ID: https://orcid.org/0000-0002-4555-9110

Anatolii Bosenko,
Doctor of Pedagogy, Candidate of Biological Sciences,
Professor at the Department of Biology and Health Protection,
The State Institution “South Ukrainian National Pedagogical
University named after K. D. Ushynsky”,
26, Staroportofrankivska str., Odesa, Ukraine,
ORCID ID: https://orcid.org/0000-0003-3472-0412

A RETROSPECTIVE REVIEW OF THE DEFINITION OF “INFINITE TONE” UNDER THE CONDITIONS OF FUNCTIONAL TESTS IN SPORTS MEDICINE

The analysis of retrospective and modern scientific works shows ambiguity of approaches to a phenomenon of “infinite tone”, and also the factors and conditions contributing to its occurrence in the process of functional diagnostics. This fact stipulates contradictions in an assessment of the corresponding functional state of the person in medical practice, in particular in sports medicine, and consequently, the relevance of the problem. The aim of the work is a retrospective analysis of the scientific literature devoted to the study of the phenomenon of “infinite tone” in functional diagnostics. Theoretical (analysis of scientific and scientific-methodological literature on the issue of research), empirical (medical and pedagogical experimental study of functional abilities of persons of different gender, age, level of physical fitness and sports specialization) and analytical (statistical analysis with the calculation of M, σ, m, CV, Student’s t-test) methods were used in the work. The scientific literature on the phenomenon of “infinite tone”, which is revealed in athletes after physical load, is analyzed in chronological order. The mechanisms of “infinite tone” occurrence, as well as the origin of dystonic type of blood circulation with “infinite tone” phenomenon, are reviewed. A total of 3,914 cycle ergometry studies were performed, in which 2,520 male (64,38%) and 1,394 female (35,62%) athletes with sports qualifications from secondclass athlete to honored masters in various sports (standard and situational, cyclic and acyclic) were examined. Classical measurements of physical working capacity on a bicycle ergometer were conducted with measurement of heart rate and blood pressure in the sitting position on the bicycle ergometer before physical load, after the first load, after the second load, and at the 5th minute of the recovery process. It was found that “infinite tone” was audible in 57,46% of athletes after the second physical load on the cycle ergometer, including 74,03% of men and 25,97%, women (p=0,00001). This indicates a probable prevalence of “infinite tone” in male athletes, and accordingly, requires consideration in functional diagnostics. The attempt to reveal mechanisms of the specified phenomenon and individual features of its manifestation is undertaken. Prospects for further research are seen in the study of the influence of age, gender, sport and sports qualification on the manifestations of infinite tone after dosed and extreme physical loads.

infinite tone, athletes, men, women, submaximal PWC170 test, blood pressure.

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