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Background and study aim: Development an effective system for evaluating and enhancing the adaptive reserves of elite wrestlers is critical issue in professional sports. The challenge of optimizing the functional training of athletes with high resistance to physical loads is particularly pressing. The purpose of this study is to create a mechanism for assessing the adaptive body reserves of elite wrestlers under anaerobic energy supply conditions. Material and Methods: The study involved 60 elite Greco--Roman wrestlers, aged 19±0.5 years. Two test tasks were designed: executing a suplex while alternating between three partners for 15 s (targeting the creatine phosphokinase energy system) and 40 s (targeting anaerobic glycolysis). The control occurred in a state of rest before and after the specified loads. The peculiarities of adaptive and compensatory reactions of sportsmen to physical stress were researched with the help of biochemical analysis (cortisol, CPK, LDH in the blood serum) and HRV. Results. Based on the initial results of the spectral analysis, athletes were divided into two groups: sympathotonics (LF/HF>1.5) and parasympathotonics (LF/HF <1.5). Sympathotonics had a vagal influence on the sinus node increase after 15 seconds of exercise. At the same time, the steroid hormone, the CPK, and LDH activity in the blood increased. In parasympathotonics, the vegetative balance shifted towards sympathetic regulation due to similar loads. The level of CPK and cortisol in the blood increased, but LDH parameters did not change. Depending on the shifts in the vegetative balance in response to the load within 40 seconds, the participants of each group were divided into subgroups. Athletes with both types of regulation showed a decrease in LF/HF indicators, cortisol in the blood, and an increase in LDH in response to this stimulus. An increase in LF/HF, cortisol concentration, CPK activity, and minimal changes in the level of LDH in the blood was observed in other subgroup participants after similar loads. Conclusions. The study results demonstrate the practicality of simultaneously using biochemical indicators of blood and HRV as informative markers for assessing the adaptation reserves of elite wrestlers. The observed changes in cortisol, LDH, CPK in the blood, and HRV indicators of athletes with different vegetative balances will change the concept of optimizing functional training. [ABSTRACT FROM AUTHOR]

Background and Study Aim.: Hypokinesia poses a significant challenge in modern physical education systems because prolonged lack of motor activity can lead to physiological maladaptation. This condition decreases adaptive reserves and functional capabilities, thereby negatively impacting educational results. This study aims to develop a technology for improving the physical education of students with hypokinesia through power fitness and to assess its practical effectiveness. Material and Methods.: The research comprised two stages. First, a survey was conducted among university professors of physical education and specialists in kinesiology and power fitness, totaling 60 respondents. The practical part of the research involved 84 students (young men) with hypokinesia aged 19±0.3. Students were divided into three groups of 28 people according to the results of body fat mass indicators (BF, %). Participants of group A (BF=13.7%) used a model of recreational classes in physical education which is common for higher education institutions. Group B (BF=8.2%) took up the 1st experimental model of classes developed on the basis of power fitness. Group C (BF=27.8%) used the 2nd experimental model of classes with power fitness elements. Control testing of muscular strength development and results of bioimpedancemetry were used to determine the nature of adaptation processes. Results. Mechanisms for increasing the adaptive reserves of students with hypokinesia were developed based on the survey results. Only group C participants decreased the BF indicator significantly (by 7.7%) during the research. The FFM and ACM indicators in group B exceeded the results of other groups by 4-5 times. The initial level of muscular strength development was identical in all groups (4 RM). However, using the 1st and 2nd models significantly increased the strength growth rate. The dynamics of muscular strength development in group B participants was 3.5 times higher than in group A. The difference between the results of groups C and A was 2 times. Conclusions. This study confirms the need to find new ways to improve the system of physical education for students with hypokinesia. The results indicated the effective use of power fitness elements in the adaptation of young men with hypokinesia. The proposed mechanism of training model correction allows for determining the optimal load parameters for the level of body resistance to physical stimulus. [ABSTRACT FROM AUTHOR]

Background: With the increasing popularity of fitness, there is a growing need for novel mechanisms to evaluate the compliance of load parameters with adaptive body reserves. This study aims to evaluate the correlation between load volume and adaptive compensatory body responses among untrained young individuals undergoing various power fitness regimens. Material and methods: The study comprised 60 young men, aged 17±0.4 years, with no prior fitness experience. They were divided into two groups and subjected to the most prevalent load modes in power fitness (Ra=0.53 and Ra=0.72) for a duration of 12 weeks. Methods of bioimpedancemetry, anthropometry, testing of maximum strength development (1 PM), and biochemical blood tests (creatinine, cortisol, testosterone) were used to analyze adaptative compensatory reactions to physical stimulus. The correlation between load volume parameters (Wn) and controlled indicators of adaptive body changes was determined using Spearman's rank correlation coefficient. Results: In the study, Wn varied depending on the load mode characteristics. The initial parameters of maximum strength development were almost identical in all study participants. The load volume parameters were 61.9% higher in group 1. During the research, the maximum strength development increased by 20.9% in group 2 representatives. The studied morphometrical indicators expressed the highest adaptative changes in group 2. The biochemical blood markers provided different manifestations of adaptative compensatory reactions of study participants depending on load modes. An increase in the basal creatinine level, indicating muscle mass growth, was found only in young men of group 2. A significant increase in blood cortisol, which demonstrates compensatory reactions, was observed during all stages of the study in participants of group 1. A strong correlation between the load volume and 1 PM, FFM, and BCM indicators was observed in both groups. An inverse moderate to strong correlation between Wn and basal testosterone level was found in both groups during the observation period. The absence of correlation between Wn values, circumferential body measurements, and fat mass in young men of group 1 is justified by the peculiarity of the load mode. Conclusions: Using a low-volume load mode (Ra=0.72) by untrained young men contributed to the most accelerated adaptive body changes during fitness training. The obtained correlation allows for ascertaining a distinct correlation between the external stimulus magnitude and adaptive body change formation. The determination of strong correlations between the studied indicators in different load modes will contribute to the improvement of the training system in fitness. [ABSTRACT FROM AUTHOR]

Introduction The use of new technologies in human life leads to an improvement in lifestyle. However, many factors of modern life (environmental, social and others) can provoke a decrease in physical and mental performance, which, as a result, worsens health. One of main factor causing deterioration in health is physical inactivity. Physical activity, in turn, can help improve health and mental well-being. The study of the psychophysiological state of persons with different level of physical active may provide new information about the mechanism of physical inactivity and be of use to improve health. The purpose: We study psychophysiological state in physically active and sedentary persons. We predict that physically active participants buffer environmental stressors better and thus have higher values on their psychophysiological states than sedentary persons. Material and methods 19 physically active men (22-35 years) who practiced sports no more than three times a week were examined. Men with low physical activity and a sedentary lifestyle (20 persons, 26-36 years) were also examined. All of persons are non-clinical subjects. The mental state was studied using an adaptive version of the Luscher color test. Neurodynamic tests included a test of a person's ability to make decisions and anticipate them. Among the cognitive tests, the "Number Comparison" test for perception speed was used. All tests used in the study were part of the Multipsychometer-05 hardware and software complex. Results It was revealed that the lack of physical activity leads to increased tension of the autonomic regulation system and limitation of the body's functional reserves. The relationship of physical inactivity with increased anxiety and tension of the autonomic nervous system was revealed. Thus, the increase in effectiveness and speed of perception in physically active persons indicates the stimulating effect of the motor activity factor. In addition, it was revealed that physically active people have better accuracy and quality of non-verbal perception and information processing. Conclusions Physical activity affects the mental state, cognitive functions and anxiety levels. This is promoted by an increase in the performance of perception and the speed of processing non-verbal information. One of the main useful results of this study is the possibility of the influence of physical activity on improving the mental and cognitive properties of an individual. [ABSTRACT FROM AUTHOR]

Background: With the increasing demands aced by teenage athletes in mixed martial arts (MMA) competitions, there is a pressing need for scientists to develop innovative training. This study aims to formulate a strategy for training teenage athletes to excel in high-level MMA competitions, leveraging the physiological characteristics of neuromuscular system adaptation to stress-inducing stimuli. Additionally, the practical efficacy of this strategy is be assessed. Materials and methods: The research encompassed 24 male athletes, representing various age and weight categories of the Ukrainian national youth team in MMA: U14 (G02-G05), U16 (F01-F04) and U18 (E03-E06). At first, the results of athletes' performance at the 2022 MMA World Championships were analyzed. The training procedures for these competitions were analyzed. In the second stage, the strategy for sportsmen's preparation for the World MMA Championship 2023 was developed. It employed physiological features of the neuromuscular system adaptation to stressful stimuli. An innovative system of training management was implemented. The mechanisms for improving the functional support of technical actions in fights were developed. In the third stage of the study, a comparative analysis of the athletes' performance at the World MMA Championships in 2022 and 2023 was carried out. Results: The 2nd place at the 2022 MMA World Championship was won by the study participants due to the successful implementation of suffocation and painful techniques. 20% of the victories in fights depended on the referees' decision. The strategy for training athletes for similar MMA competitions in 2023 was based on maximizing the adaptive potential of the neuromuscular system. The strategy implementation allowed for winning first place at the World MMA Championship 2023. The dynamics primarily increased owing to the growth of the maximum strength and adaptive body reserves, as well as a change in the priority of using technical actions. The number of victories by knockout and technical knockout doubled compared to similar competitions of the previous year. The number of victories obtained by referees' decisions decreased by 3.5 times, which reduced the possibility of errors during judging. Conclusions: Developing a strategy for training teenage MMA athletes requires a detailed study of the physiological processes of the neuromuscular system adaptation to different load modes. The efficiency of performed technical actions and their priority depends on the functional capabilities to carry out these tasks. An important factor of the training system is the validity of using power load regimes depending on the expediency of increasing adaptive reserves of priority muscle groups. [ABSTRACT FROM AUTHOR]

Background: Using different models of strength training in MMA is one of the components of improving the training of athletes of different fighting styles. However, there was conducted no study of the impact of different training loads, structure of workouts on the level of training of striking style athletes during selection fights. The aim of the study was to improve the correction system of special kick training and to study its effectiveness during selection fights by modeling training loads. Material and methods: 60 athletes aged 16±0.9 years using a striking fighting style took part in the study. At the first stage, the results of selection fights for the 2021 Ukrainian Championship were analyzed in terms of using different kicks. At the second stage, the development of correction models for special kick training for each group took place. During next 3 months, the proposed training models for participation in selection competitions for the 2021Ukrainian MMA Cup were applied. At the third stage, there was a comparative analysis of the ratio of using 8 different kicks by the study participants during both selection competitions. Results: Using the developed training models had a different effect on the ratio of kicks performed by the participants of all groups. The 1st and 2nd group athletes demonstrated the unchanging priority of using "left/right kick" at all stages of the study. Despite the significant difference in the structure of models, a comparative analysis of two selection fights showed increased usage of this kick (18.2%). The ratio changes of other 7 kicks in athletes of groups 1 and 2 depended on the features of training load and energy supply modes. In the 3rd group athletes who used the training model developed on the principle of premature fatigue, the priority of kicks changed during the study. At the beginning, 15.2% of the total number of kicks during fights were "side kick to the head". However, at the end of the study, the priority of this kick decreased by 3.0%. The leader among athletes of the 3rd group (16.4%) was the "direct back leg kick from onesided fighting stance". Conclusions: Improving the correction system of special kick training due to the development of new models of strength training allows to increase the athletes' level of training during the selection fights. [ABSTRACT FROM AUTHOR]

Background: Correction of the training system in various sports based on the previous competition results analysis is a common practice allowing to quickly increase the training level. However, such studies have not been conducted in MMA for athletes who primarily use a wrestling or striking style of fighting. The purpose of the study was the development and practical implementation of an integral methodology for improving the precompetition training of athletes, taking into account their fighting style, based on the analysis of the previous competitions results. Material and methods: 10 athletes of the Ukrainian national MMA junior team (16-17 years old) took part in the study. At the first stage of the study, the training process of the pre-competition mesocycle and the 2022 European MMA Championship results were analyzed. At the second stage, the methodology for correcting the training process was developed and implemented during 2 months of pre-competition preparation for the 2022 MMA World Championship. At the third stage, there was a comparative analysis of the athletes' performance results in both competitions. Results: The study showed that using the "classical" method of pre-competition preparation for the European Championship contributed to the fact that during the competition, 68.7% of the fights were won. The use of the experimental methodology for two months of training contributed to the development of maximal strength by 8.8% in athletes with wrestling style and by 20.6% in athletes with striking style of fighting. The practical implementation of increasing the adaptive body reserves during pre-competition training was carried out during the World Championship. 84.4% of the total number of fights were won. At the same time, the number of fights, which ended early by knockout, painful or choke hold, or with a clear advantage, increased by 19.0% compared to the results of the European Championship. Conclusions: The use of the integral training method allowed increasing the implementation of technical skills and functional capabilities of athletes, taking into account their style of fighting in competitive activities. [ABSTRACT FROM AUTHOR]

Purpose: to study the features of the influence of training loads in bodybuilding with the sequential use of basic and isolation exercises on the nature of adaptive body changes in athletes. Methods. 60 bodybuilders aged 18 ± 0.23 were divided into 3 groups, which used different combinations of basic and isolation exercises at the stage of specialized basic training during 4 months. To determine the effectiveness of the proposed training programs on the nature of adaptive changes in the body of athletes we used morphometric parameters, indicators of bioimpedansometry and biochemical analysis of cortisol concentration and lactate dehydrogenase activity in the blood. Results. The pronounced adaptive changes for the period of research were observed mainly in athletes of the third group due to increase in the circumferential sizes by 7.7% (p <0.05) and increase in fat-free mass by 8.5% (p <0.05) and decrease in body fat by 9.1% (p <0.05). Representatives of groups 1 and 2 also had positive dynamics in circumferential sizes and body composition, but with a less pronounced progression over the same period. At the same time, the results of biochemical blood control indicated the manifestation of compensatory reactions in response to physical stimuli in bodybuilders of group 1, especially at the beginning of the study. Thus, group 1 athletes had a decrease in the cortisol concentration by 26.8% (p <0.05) on the background of a significant increase in LDH activity by 37.4% (p <0.05) in the blood almost to the upper limit of the norm. Athletes of groups 2 and 3 showed a safe increase in cortisol concentration and LDH activity in response to a stress stimulus. At the end of the study, we observed the effect of long-term adaptation mainly in group 3 athletes on the background of no significant changes in cortisol concentration and LDH activity in the blood serum in response to exercise, which indicated increasing the body resistance to the physical stimuli. Conclusion. Using the proposed mechanism of the training process correction at the stage of special basic training in bodybuilding allows to optimize the training load parameters as well as achieve pronounced adaptive changes in the body of athletes and their muscle growth. [ABSTRACT FROM AUTHOR]

Problem Statement. The task of psychophysiological control is to obtain operational information about the state of the main characteristics and qualities of the athlete, which can be used to correct the training system. Psychophysiological control include of complex of assessments of personal-typological, sensorimotor, psychcogial and cognitive characteristics of the athlete. There is a need to develop a system for diagnosing of psychophysiological states and correction of deficits of adaptation process for elite athletes. Purpose: The aim of this study is to compare psychophysiological state among Croatia and Ukrainian wrestlers and add to a more holistic psychophysiological diagnostic in expert athletes. Methods: Participants are the elite Greco-Roman wrestlers and members of the national teams of Ukraine (20 athletes) and Croatia (12 athletes). The psychophysiological states of wrestlers were studied by a holistic methodological approach which includes: estimate of psychological state, balance of nervous process and functional mobility of nervous process. Results: The results indicated higher performance in visual perception and the ability of information processing speed of Ukrainian wrestlers compared to Croatian wrestlers. Differences have been observed as well in optimal impulsiveness, emotional stability and stress resistance that is less optimal Croatian wrestlers. Croatian wrestlers have an increased level of impulsivity and, as a result show low emotional stability. This may indicates possible spontaneous and premature actions of wrestlers. For Ukraine wrestlers arousal and fatigue management are future goals for improvement. Conclusions: We conclude that Ukraine Team should improve preparedness to training given the fatigue and arousal. For Croatian wrestlers emotional instability and improvement of visual perception need to be considered. [ABSTRACT FROM AUTHOR]

The most used in today's methods of expert assessments (questionnaires, surveys, brainstorming) have a number of underestimations, the main of which is that the consistency and logic of expert statements are not determined. To solve this problem field, a computer program has been created for collecting, saving, quantitative comparison and operational processing of the results obtained through a collective expert evaluation. The article describes the mathematical algorithm of this program. As a base of the program, due to the combination of elements of the Delphi expert survey and the method of modern theory of hierarchical systems T. Saati, the procedure of synthesis of priorities is taken, which is calculated on the basis of subjective expert estimation. The priority or weighting factor is determined on the basis of the individual judgment pair comparison principle of the expert on the priority (the degree of advantage, weight) of one component of a particular process over another. In this work, the method of simple iteration is used. The created program establishes the judgments coherence and logic degree of each of the experts. That is, by way of the estimation pair comparison of the individual expert it is not permissible to violate the coherence and logic of his estimations. A dual comparison excludes the possibility of "blind" use of an uncoordinated and illogical evaluation, requires its refinement or ignores the use of such an assessment. With the help of convenient and easy to use author's computer program, scientists were able to quickly obtain quantitative units of weighting factors of the studied components of a particular process. This allows to display all the results of an interdependent collective, logical and coordinated individual expert estimation. [ABSTRACT FROM AUTHOR]

Purpose: To identify connection between sensory and motor components of the professional kickboxers' functional state. Material: The study involved 31 kickboxers, aged 12 to 15 years, qualified as the First-Class Sportsmen and Candidates for Master of Sport of the Ukrainian Kickboxing Federation ISKA. Results: Assessment of individual peculiarities of physical and psychophysiological state of the sportsmen was made using generally accepted methods of dynamometry, testing of movement quality and valid methods of psychophysiological state research. Correlation analysis of significant connections between the indicators, characterizing psychophysiological state of the kickboxers, was performed. The method of work with standard computer software for mathematical statistics SPSS was used to process data received using the correlation analysis. Determination of Pearson correlation coefficient, which measures linear correlation between changes of two variables, enabled to determine availability or absence of linear correlation between two qualitative indexes and evaluate its completeness and statistical importance. The correlation coefficient was used to evaluate tightness of connection between the indicators, considering that coefficient equaling to and being lower than 0.3 indicates low tightness of connection, coefficient exceeding 0.4 but being lower than 0.7 indicates moderate tightness, and coefficient equaling to and exceeding 0.7 indicates high tightness of connection. Conclusions: The correlation analysis enabled to detect availability of significant correlative connections between the indicators, characterizing locomotor and psychophysiological functions of the sportsmen with the majority of connections between their speed parameters. The offered objective criteria enable to perform individual assessment of the indicators of psychophysiological state of the sportsmen and are suitable for measurement of kickboxers' adaptation to physical activities. [ABSTRACT FROM AUTHOR]

The purpose of the study was to assess the impact of the training load on the static and dynamic stability of athletes specializing in hand-to-hand combat. The study of static and dynamic stability (SDS) was attended by 20 individuals (the first group) who were not involved in sports professionally, 23 athletes (the second group) engaged in hand-to-hand combat with semi contact with an opponent, and 24 athletes (the third group) specializing in hand-to-hand combat with full contact. The average age of all athletes was (21 ± 1.5) years. Registration of SDS indicators was carried out before and after training, corresponding to the athletes' levels of training, using a stabilographic platform. Statistical analysis of the results of the study was performed using the Statistica 6.0 software package and descriptive statistics methods. The clustering of indicators was carried out according to the k-means algorithm; the reliability of pair differences was assessed using the Wilcoxon and Mann-Whitney criteria. To identify homogeneous groups, SDS indicators were clustered according to the k-means algorithm, which allowed us to distinguish two clusters in each group. We includedpeople with high vestibular functionsinto the first cluster of each group (55-70% of the athletes), the second cluster (30-45%) encompassed athletes with low vestibular function. In the first cluster of each group, training caused an increase in SDS indicators by 20-25%, except for the equilibrium function quality index (EFQ), which decreased by 9-12%. In athletes with low vestibular functions (the second cluster of each group), the training load led to a significantly larger (36-48%) increase in SDS and a decrease in EFQ by 26-35%. Thus, a significantly more pronounced reaction to the training load was detected in individuals with initially lower vestibular functions.The obtained results showed that elite athletes specializing in hand-to-hand combat may have low SDS. As a result of the training load, vestibular functions were significantly reducedin such athletes. Thisdeteriorated the functional state of athletes and could cause poor performance in competitions. There was no significant dependence of the vestibular functions of athletes on the type of hand-to-hand combat. [ABSTRACT FROM AUTHOR]

Climbing will be presented at the 2020 Olympic Games as an independent competitive discipline in the "Climbing Combined" format, which will include all competitive disciplines. The aim of the study: identifying the relationship between the ranking in certain types of sports climbing and the ranking in the Olympic discipline of climbing "Climbing Combined" in men according to the results of the 2018 World Cup. Material and methods. The study involved 87 climbers (men) who took part in the 2018 World Cup. The data presented in the competition protocols on lead, speed, bouldering and Climbing Combined were summarized (places occupied by the athlete, points were awarded to him to summarize the results). Pearson's correlation analysis was performed to identify the relationship between rating in various climbing disciplines and Climbing Combined rating. Using the analysis of variance, the effect of the results in various disciplines on the result in Climbing Combined was determined. Results There is no significant relationship between the rating disciplines "Speed" and "Lead". Also, no reliable relationship between the rating in the disciplines "Speed" and "Bouldering" was revealed. ANOVA of the impact of the results in some types of climbing on the result in Climbing Combined showed the presence of reliable dependence of the result in the discipline "Bouldering" on the result in Climbing Combined (p <0,05), of the result in the discipline "Lead" on the result in the Climbing Combined (p <0,05) and from the combined interaction of results in these types of climbing on the result in the Climbing Combined (p <0.05). Conclusions. It is shown that athletes who specialize in the Lead and Bouldering disciplines are more likely to compete in the Climbing Combined, as the results in these disciplines are interrelated and significantly affect the result in the All-round. [ABSTRACT FROM AUTHOR]

Purpose: to identify the optimal load parameters in the process of power training of Mixed Martial Arts athletes with a wrestling style on the basis of studying adaptive and compensatory body reactions in conditions of intense muscular activity of different intensity and volume of work.Material: We examined 40 sportsmen aged (21 ± 0.8), who participated in Mixed Martial Arts fights during the last (2.0 ± 0.3) years and used predominantly a wrestling style of fighting. The athletes were divided into 2 groups: group A and B. The participants of group A used the low-intensity load and the large amount of work in the training process. Athletes of group B used loads of high intensity and small volume of work. Morphometric, biochemical, and statistical methods of research were used to study the features of adaptive and compensatory body reactions of these athletes in conditions of power training of different intensity. Results: The obtained results show that athletes of group A increased their circumference indices by 1.9% on average after 3 months of research. In group B, for the same period of time, the studied indices increased by 5.5% on average compared to the baseline data. It was noted that at the beginning of the study, the cortisol concentration in blood serum of group A athletes decreased after exercises by 23.9% in comparison with the basal ones. This fact indicates compensatory reactions to the stimulus and high energy costs. We observed completely opposite changes in group B sportsmen. They were expressed in the increase of the studied indicator by 46% in comparison with the data recorded before exercises. This fact testifies to the adequacy of the loads to the functional body capabilities of this group of athletes. The results of biochemical control of the changes in the hormone testosterone and the enzyme lactate dehydrogenase in the blood of both groups' athletes confirm the fact that it is the use of high-intensity loads that promotes the enhancement of the athletes' adaptive body capabilities for training activities in MMA. Conclusions: The analysis of the results obtained during the series of experimental studies indicates the necessity of correcting load parameters during power training. It should be based on the analysis of athletes' adaptive and compensatory body reactions to a stress stimulus. Otherwise there should be developed completely new training programs. [ABSTRACT FROM AUTHOR]

Purpose: study is to research the degree of influence of training sessions in dance and power fitness on the dynamics of body morphometric parameters of women aged 18-21 and to determine the features of adaptivecompensatory organism reactions to the physical stimulus, which will allow to assess the degree of health effect in conditions of muscle activity. Material: The paper presents the results of studying the influence of dance and power fitness 3-month trainings on the dynamics of morphometric and biochemical indices in women aged 18-21. Results: to solve the objectives of the study, we formed two research groups: the control group participants used the elements of dance fitness during the training while the main group participants used the power fitness models during their trainings. In the course of the study, it was found out that the morphometric indices (cumulative dimensional parameters of the body composition) showed the most noticeable positive dynamics during 3-month trainings in the control group. The results of biochemical blood tests of both group participants were fixed in the beginning and after 3 months of research in conditions of rest and after training sessions. These results testified significant expenditures of energy during dance fitness training caused most of all by inadequate functional body capabilities in the process of physical activity. The cortisol concentration in blood serum of the control group women showed a decrease of 10.3% in response to physical activity even after a long period of occupation. This indicates the processes of gluconeogenesis caused by energy deficiency and manifests body compensatory reactions to a stressful stimulus. Conclusions: the obtained results testified that dance fitness classes influenced more effectively on the reduction of women's circumferential body size, decreased body fat mass and increased the level of fitness, which is one of the priority tasks for this type of motor activity. This circumstance is also confirmed by the results reflecting the increase in phosphorus concentration in the blood of control group participants after loading by almost 4.8% compared with the state of rest. [ABSTRACT FROM AUTHOR]

The paper presents the results of study dedicated to the search for effective methods of quantitative evaluation of power loads that allow developing and introducing into the fitness training process safer and simultaneously more effective modes of muscular activity for achieving maximum adaptive reactions in the body of people with different levels of training and functional abilities. To conduct the research we formed a group of 40 trained males aged 20-21 engaged in power fitness for the last three years. The obtained results show that changing at least one index that influence on the conditions of muscular activity in fitness significantly affects not only the choice of the projectile working mass, but also the entire load regime orientation and the training process on the whole. It was found out that while performing partial amplitude exercises (90% of the total), despite the projectile working mass that the athlete can lift will be 5-7% more from the full amplitude of motion mass, which is more characteristic of classical power sports (weightlifting, power lifting). It should be noted that other load regime indicators are identical with the conventional ones. At the same time, when performing a partial amplitude training exercises, the number of repetitions in the set decreases because of appearing the premature muscle fatigue and lack of a fixation phase at the peak point during boom lifting. An empirically developed integral method for estimating the load in power fitness is one of the most important methodological elements necessary to optimize the training activities management process. The use of this method allowed us to clearly define the volumes of exercise used in power fitness in the appropriate quantitative units. Thanks to the development of this method of assessing the power loads, it became possible to avoid sufficiently subjective gradations (small, medium, large) that were previously used by researchers and practitioners in the field of sports physiology, sports theory and practice, and sports medicine. The quantitative values of the indicators provided an opportunity to control the design of the training process in details, depending on the load regime characteristics and the level of person's physical fitness. [ABSTRACT FROM AUTHOR]