Actually, the studies indicate a negative decline dynamics of the main indicators of the physical development and health of the modern young people receiving higher education. In our studies, it was found that the existing physical training programs are not able to provide the optimal level of functional readiness of the military students and officers of the military universities as needed to perform the professional tasks. Moreover, the purpose of research is the search for the optimal training effects aimed at increasing the military students' level of physical and functional training at the universities of the Ministry of Internal Affairs of Russia. The participants of the research were the young men (17-18 years old) and they were the cadets of the 1st course of a higher education institution of the Ministry of Internal Affairs of Russia (n=28). All cadets had no medical contraindications and had similar indicators of the physical development. The duration of the study-5 weeks. During this time, the cadets of the experimental group were using the burpee exercises during the physical training classes. It should be noted that the method of using burpee included a systematic reduction in the intervals of recovery time between the exercises. Fortunately, to assess indicators dynamics of the young men, the tests were used that characterize the physical fitness level of the young people. The data statistical analysis was performed using the Mann-Whitney U-test. The test results show a significant (P<0,05) advantage of the development level of the strength, speed-strength and functional abilities among the cadets of the experimental group. Indeed, it was revealed that the method of optimal training effects proposed by the authors contributes to a reliable (P<0,05) increase of some indicators of the physical development level of the young people in a relatively short (4-5 weeks) time interval.

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The purpose of the study is to organize physical therapy classes and develop a program that includes an adapted method of health-improving walking for rehabilitation in the post-covid period. This means of physical culture can provide the maximum level of functional and physical characteristics to achieve high performance, emotional mood, and healthy life activity. The study involved bachelors in the Siberian State Scientific and Technical University named after M. F. Reshetnev, who had been ill with COVID-19. Classes of therapeutic physical culture will allow to reveal the great adaptive potential of the human body, to form a long-term adaptation, which consists in the restructuring of the body at the molecular, cellular level, in tissues, organs, organ systems and intersystem level, which determines the positive morphological and functional features of the trained organism as a manifestation of the biological norm. The frequency, intensity, direction of physical exercises, their duration and combination, the level of fitness, individual characteristics of those engaged and a number of other factors determine the nature and degree of these changes in the body. In future studies, we plan to use health-improving walking for rehabilitation in the period after AIDS for university teachers aged 50-59 years, as the most vulnerable during the COVID-19 pandemic. In conclusion, it should be noted that when exposed to physical exertion, muscle fibers are regenerated, becoming overgrown with a larger amount of protein material than it was originally. That is why the physical capabilities of the muscles are improved, due to the distribution of the load on a larger amount of muscle tissue. The synthesis of more muscle fiber requires the delivery of more oxygen and nutrients to the cells not only of the muscles, but also of all body systems. Increased blood flow contributes to an increase in the lumen of blood vessels, which increases the efficiency of the cardiovascular system, which is especially important during rehabilitation in the post-covid period.

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