We suggest you familiarize yourself with the materials of the scientific article: THE INFLUENCE OF COMPLEXES OF MACHINE AND FREE WEIGHTS EXERCISES ON THE LEVEL OF POWER TRAINING OF ATHLETES IN STRIKE FIGHTING IN HORTING, which was published in the scienti

We suggest you familiarize yourself with the materials of the scientific article: THE INFLUENCE OF COMPLEXES OF MACHINE AND FREE WEIGHTS EXERCISES ON THE LEVEL OF POWER TRAINING OF ATHLETES IN STRIKE FIGHTING IN HORTING, which was published in the scientific journal "Olympic and Professional Sport" in the section "Physical Education, Sport and Health Culture in Modern Society". No. 3(63), 2023.
The authors of the scientific article are: Stanislav Fedorov, Ivan Shtefiuk, Oleksandr Zavizion, Andrii Chernozub.
Stanislav Fedorov
Lesya Ukrainka Volyn National University 
Ivan Shtefiuk
Yuriy Fedkovych Chernivtsi National University 
Oleksandr Zavizion
Lesya Ukrainka Volyn National University 
Andrii Chernozub
Lesya Ukrainka Volyn National University
Abstracts
Purpose. To study the peculiarities of influence of power training loads including machine and free weights exercises on the development of maximum muscle strength of athletes in horting and on their level of training in strike fighting. Methods. We examined 40 sportsmen aged 20±1,2 engaged in horting. The study took place at the stage of specialized basic training and lasted 3 months. All participants were divided into 2 groups, 20 athletes in each group.
Group 1 used machine exercises and group 2 used free weights exercises (barbells, dumbbells). The effectiveness of the
proposed exercises in the specified modes of muscle activity was evaluated by the indicators of maximum strength development and level of training in strike fighting in horting. Biochemical analysis of cortisol concentration was used to assess their adaptive and compensatory reactions to a physical stimulus. Results. The research results showed that using machine exercises in conditions of anaerobic-glycolytic mode of energy supply contributed to the growth of average group indicators of maximum strength development by 44,8 % (р<0,05) in group 1 athletes. The same
indicators increased by 45,1 % (p <0,05) in group 2 athletes who used free weights exercises on the background of anaerobic-alactate mode of energy supply. The special strike training results in horting showed that the most pronounced increase in the number of kicks with maximum force for 15 s was by 30,4 % (р<0,05) in group 2 athletes (according to the results of 3 control exercises). Group 1 athletes also showed positive dynamics, but with almost 4,5 times lower progression. At the beginning of the study group 2 athletes demonstrated decrease in cortisol concentration by 18,8 % (р<0,05), and group 1 athletes increased this indicator by 10.3% compared to the state of rest. The results revealed at the end of the study indicated that this hormone did not change its parameters in response to a physical stimulus. Conclusion. Using free weights exercises contributed to positive changes in control indicators of strike training in horting, despite almost identical increase in maximum strength parameters in both group athletes. Despite the compensatory reaction manifestations in response to power loads in the conditions of anaerobic-alactate mode of energy supply at the beginning of the study, we observed the process of long-term adaptation at the end of the study.
Key words: horting, athletes, machine exercises, free weights exercises, level of training in strike fighting, cortisol.
Conclusion of this research in the field of horting development:
1. Using free weights exercises in conditions of anaerobic-alactate regime of energy supply contributes to a more pronounced increase in the control indicators of strike training in horting, than during the long-term use of machine exercises. It should be noted that similar changes occur despite an almost identical
increase in maximum strength parameters, regardless of the structure of exercise complexes, load parameters, and modes of energy supply of training activities.
2. Using a biochemical indicator of the cortisol concentration in the blood serum of athletes in the process of training as an informative marker for assessing the adaptive and compensatory reactions of the athletes to a physical stimulus, allows clearly determining the adequacy of loads to the body’s functional
capabilities. This biochemical marker of blood lets us clearly determine the accelerated reduction of energy resources in conditions of power loads of the anaerobic-alactate mode of energy supply and contributes to the prompt correction of the training process to increase the effectiveness of attacking and counter-attacking kicks in horting.
The article is published in English.