The paper presents the results of determining the peculiarities of changing the physical exercise parameters in power fitness in the conditions of prolonged usage of different intensity training models during training. We examined 50 physically healthy, untrained young men aged 19 ± 1.1. Participants were divided into 2 experimental groups. Different training sessions ("A" and "B") were developed for representatives of groups 1 and 2. Training sessions differed from each other by the power load magnitude. We used an integral method of estimating the magnitude of the load to determine the peculiarities of changing the data indicators in the proposed conditions of muscle activity. In the course of 3-month training, the indicators of maximum muscle strength (1 PM) in group 1 participants increased on average by 30.3% (p <0.05), while the other group showed the increase by 49.3% (p <0,05) compared with the initial data. The relevant significant difference was found during the control of the parameters of the projectile's working mass (m) during 3 months of power fitness occupation. Thus, in boys of group 2, this indicator increased by 23.5% (p <0.05) compared to the positive results demonstrated by group 1 representatives for the same period of time. Despite the positive positive dynamics, the indicator of the volume of workload in the working network (Wn) in the group 2 representatives was almost 129.7% (p <0.05) lower than the results of their opponents, both in the beginning and in the end of the study. The following factors were proved to contribute to the increase of the intensity of loads and significantly reduce the amount of training work in the process of the training: reduction of rest periods between the sets, the reduction of the number of repetitions in a separate set and the doubling of the duration of the concentric and eccentric phases of the movement. Thus, the obtained results indicate that the use of training programs with high intensity loads in training processes contributes to more pronounced adaptive changes in the body of the examined participants in the process of power fitness training.

Keywords: load indices, power fitness, volume and intensity of loads, adaptive changes, programs of training sessions

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1. Calatayud J, Vinstrup J, Jakobsen M, Sundstrup E, Brandt M, Jay K. Importance of mind-muscle connection during progressive resistance training. European Journal of Applied Physiology. 2016; 116 (3): 527-33. https://www.ncbi.nlm.nih.gov/pubmed/26700744. https://doi.org/10.1007/s00421-015-3305-7
2. Chernozub A. Dinamics of the condition of autonomic heart rhythm regulation in athletic trainings. European International Journal of Science and Technology. 2013; 2 (6): 17-22.
3. Chernozub A. Peculiarities of the principle of preliminary exhaustion use by trainers and athletes in bodybuilding at the stage of a specialized basic training. European International Journal of Science and Technology. 2014; 3 (8): 108–14.
4. Maier M, Haeussinger F, Hautzinger M, Fallgatter A, Ehlis A. Excessive bodybuilding as pathology? A first neurophysiological classification. The World Journal of Biological Psychiatry. 2017; 15: 1-11. https://www.ncbi.nlm.nih.gov/pubmed/29057722. https://doi.org/10.1080/15622975.2017.1395070
5. Mitchell L, Slater G, Hackett D, Johnson N, O'Connor H. Physiological implications of preparing for a natural male bodybuilding competition. European Journal of Sport Science. 2018, 1: 1-11. https://www.ncbi.nlm.nih.gov/pubmed/29490578. https://doi.org/10.1080/17461391.2018.1444095
6. Mitchell L, Murray S, Cobley S, Hackett D, Gifford J, Capling L, O'Connor H. Muscle Dysmorphia Symptomatology and Associated Psychological Features in Bodybuilders and Non-Bodybuilder Resistance Trainers: A Systematic Review and Meta-Analysis. Sports Medicine. 2017; 47 (2): 233-59. https://www.ncbi.nlm.nih.gov/pubmed/27245060. https://doi.org/10.1007/s40279-016-0564-3
7. Roberts J, Zinchenko A, Suckling C, Smith L, Johnstone J, Henselmans M. The short-term effect of high versus moderate protein intake on recovery after strength training in resistance-trained individuals. Journal of the International Society of Sports Nutrition. 2017; 21 (44). https://www.ncbi.nlm.nih.gov/pubmed/29200983. https://www.ncbi.nlm.nih.gov/pmc/articles/5697135. https://doi.org/10.1186/s12970-017-0201
8. Schoenfeld B, Pope Z, Benik F, Hester G, Sellers J, Nooner J, Schnaiter J. Longer Interset Rest Periods Enhance Muscle Strength and Hypertrophy in Resistance-Trained Men. J Strength Cond Res. 2016; 30 (7): 1805-12. https://doi.org/10.1519/JSC.0000000000001272
9. Siewe J. Injuries and overuse syndromes in competitive and elite bodybuilding. International journal of sports medicine. 2014; 35 (11): 943–8. https://doi.org/10.1055/s-0034-1367049
10. Schoenfeld B, Ratamess N, Peterson M. Effects of different volume-equated resistance training loading strategies on muscular adaptations in well-trained men. J Strength Cond Res. 2014; 28 (10): 2909–18. https://doi.org/10.1519/JSC.0000000000000480
11. Tod D, Edwards C. Relationships amond muscle dysmorphia characteristics, body image-quality of life, and coping in males. Journal of Science and Medicine in Sport. 2014 Aug 7: 2014: 141-8.
12. Tschakert G, Hofmann P. High-intensity intermittent exercise: methodological and physiological aspects. Int J Sports Physiol Perform. 2013; 8 (6): 600–10. https://doi.org/10.1123/ijspp.8.6.600