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THE USE OF MATHEMATICAL TECHNIQUES IN THE STUDY OF THE DYNAMICS OF HIGH PHYSICAL EXERTION

The possibility of applying methods of mathematical modeling in the evaluation of human performance under high loads. As an example, used medical information about players in the Premier League of Russian

football.

The possibility of applying methods of mathematical modeling in the evaluation of human performance under high loads. As an example, used medical information about players in the Premier League of Russian football.

The behavior of the human body in extreme physical activity is of great interest to various spheres of human activity. In order to perform their duties, the people working in such conditions (e.g., astronauts, pilots and rescuers) must be in good physical training. The athlete’s body adapts to systematic high (sometimes close to the limit) exercise, in connection with which changes and its physiology.

When exposed to high physical loads subjected to rebuild the heart muscle (as, indeed, the entire cardiovascular system), which leads to the formation of the so-called “physiological athlete’s heart”. Which in Russia is the originator of the term “athlete’s heart”, by G. F. lang (1936) described changes in the cardiovascular system in athletes: trained athletes, as a rule, there is a significant slowing of heart rate, blood pressure clearly reduced on average 20 millimeters, found a small increase in heart”.I do not do sports person during a hypertensive crisis systolic blood pressure rarely exceeds 250-280 mm Hg.PT. when you jerk the rod in the prepared athlete at the peak load can reach 480mm RT. article One of the most stable constants of the human body, blood pH, normally equal to 7.4, with maximum and long-lasting loads of professional athletes may briefly drop to 7.0 (handbooks in internal medicine States that the values of blood pH less than 7.2 incompatible with life). Thus, sports medicine has a strong specificity and requires special approaches and methods of research.

To determine the state of health of the athlete and the level of its performance by the use of procedures for load testing. Indicators of aerobic physical health are among the most important in team sports. In particular, it relates to football the number one sport in the world. During a football match, at least 90% of the energy of a football player is made by aerobic; 90 minutes of the match, the player runs about 10 km with an intensity close to the anaerobic threshold (80-90% of maximum heart rate). The player in the match takes a lot of stamina, during this time, he performs to thousands of action seconds duration [1], which requires high rates of aerobic metabolism. When load testing of players (the stress tests with gas analysis) are typically used with two parameters – the level of anaerobic threshold and maximal oxygen uptake.