CHARACTERISTICS OF PHYSIOLOGICAL FUNCTIONS DETERMINING THE FUNCTIONAL RESERVES OF STUDENTS WITH VARYING MOTOR ACTIVITY LEVEL
The purpose of the study: the study of physiological body functions that determine functional reserves of students with varying level of motor activity. Research methods and organization. The study was based on the results of prospective observations of physical health of 540 students (250 boys and 290 girls) aged 17 to 22 during 2010-2018 years. In the course of the study, the Student Health Diary was used, according to the tasks of which, anthropometric screening of university students was carried out annually. Quantitative assessment of the level of somatic health was calculated by the method of G. L. Apanasenko. The level of motor activity of students was determined through the questioning results, and it was assessed by the number of points collected: low (0-8 points), medium (9-19 points) and high (20-27). Research results and discussion. It was revealed that students with a high level of motor activity demonstrate growth of physiological parameters that form functional reserves throughout the course of training. One third of students show declining level of motor activity and subsequently level of physical health, that can be explained by the lack of physical education classes in the curriculum during the 4-5<sup>th</sup> years of study. As a result, decreasing level of motor activity of students is followed by decreasing level of functional reserves. The pulse recovery time after exercise performed by students with a high level of motor activity is 3 times less compared with young people with low activity, which indicates a better functional state of the heart and its fitness. The alterations that have been revealed characterize increasing functional capacity of cardiovascular system of students during physical education and sport training. Conclusion. The study of the level of students’ functional reserves including characteristics of major physiological systems allowed revealing of dynamically functioning process owing to the level of motor activity of contemporary young people.