Dynamics of indicators of functional state and physical development of students in the process of high-intensity interval training.

OBJECTIVE: Aim: To investigate the effect of high-intensity interval training (HIIT) based on the CrossFit system on the level of students' functional state and physical development. PATIENTS AND METHODS: Materials and Methods: The research involved 36 male students who were engaged in HIIT during their studies. Indicators of students' functional state and physical development after 1 and 3 years of HIIT were studied. The functional state was assessed by indicators of the cardiovascular and respiratory systems, and physical development - by physical education tests. RESULTS: Results: It has been found that HIIT has a positive effect on the indicators of the functional state of the cardiovascular and respiratory systems of the body and the physical development of students. After three years of HIIT sessions, students significantly improved their heart rate, vital capacity of the lungs, Stange test, Genchi test, duration of recovery heart rate, as well as the level of development of speed qualities, strength qualities, endurance and flexibility. CONCLUSION: Conclusions: It has been established that the sports-oriented form of organization of physical education training sessions with the use of HIIT based on the CrossFit system is quite effective in improving the indicators of the functional state and physical development of students. A high level of these indicators will help to improve students' health, improve their well-being, and increase the effectiveness of their educational and, in the future, professional activities.

ANALYSIS OF STUDENTS' HEALTH INDICATORS IN THE COURSE OF PHYSICAL EDUCATION CLASSES WITH A SPORTS FOCUS.

OBJECTIVE: The aim: To conduct a comparative analysis of the health indicators of students who were engaged in various types of sports during physical education classes (using the example of power sports). PATIENTS AND METHODS: Materials and methods: The research was conducted in 2019-2021 when the male students (n=96) were studying at the 1st and 2nd years in Kharkiv State Academy of Physical Culture. We examined the health indicators of 17-19-year-old students, who were engaged in various power sports: powerlifting, kettlebell lifting, armsport and CrossFit. Students' health was assessed by indicators of body weight, cardiovascular, respiratory and muscular systems. RESULTS: Results: It was found that during the study period, the most pronounced changes in the activity of the cardiovascular (Robinson's index) and respiratory systems (vital index) were found among students who were engaged in CrossFit and kettlebell lifting. In the indicators that characterize the muscular system (power index), the greatest increase was found among students who were engaged in powerlifting and armsport. CONCLUSION: Conclusions: It has been revealed that classes in any power sport positively affect the improvement of certain indicators of students' health, which, in general, will positively contribute to mastering the skills and abilities to independently use the means of physical culture and sports in everyday life to maintain high performance both during academic and future professional activities.