Master Of Sports Research Articles

Аналіз результатів анкетування волейболістів-аматорів та здобувачів освіти ЗВО фізичної культури і спорту щодо теоретичної підготовки в навчально-тренувальному процесі волейболістів

The aim of the study is to determine the opinions of amateur volleyball players and students of higher education institutions in the field of physical culture regarding theoretical preparation. Materials and Methods. During the research, the following methods were used: methods of theoretical level of research, methods of empirical level of research and mathematical statistical methods. Our survey aimed to identify the attitudes of amateur volleyball players and students of higher education institutions in physical culture regarding distance teaching of volleyball and theoretical preparation during both online and offline training processes. We proposed 8 specific questions in the survey about the respondents' awareness of theoretical preparation in volleyball, its significance, and the availability of modern forms and methods, as well as their self-assessment of theoretical preparedness, etc. A total of 70 respondents participated in the survey, including: 1 Master of Sports of International Class (1.4%); 1 Master of Sports (1.4%); 6 Candidates for Master of Sports (8.6%); 8 First-Class players (11.4%); 3 Second-Class players (4.3%); and 51 unclassified players (72.9%). Among all respondents, 49 were female (70%) and 21 were male (30%). By age: under 20 years – 17 individuals (24.2%); 20 to 25 years - 24 (34.3%); 25 to 30 years – 18 (25.8%); 30 to 35 years – 7 (10,0%); 35 to 40 years – 3 (4.3%); over 40 years – 1 (1.4%). Additionally, 65 volleyball players live in the city (92.85%), 1 in an urban-type settlement (1.43%), and 4 (5.72%) in rural areas. Among the respondents there were 24 students (34.3%), 40 (57.1%) working volleyball players, and 6 (8.6%) temporarily unemployed. The experience of volleyball training among the respondents varied from 1 to over 20 years: from 0 to 5 years – 19 (27.1%), from 5 to 10 years – 22 individuals (31.4%); from 10 to 15 years – 14 (20%); from 15 to 20 years – 9 (12.85%); over 20 years – 6 (8.6%). The survey was conducted during the "Fit-Mix" park volleyball tournament among amateur teams in Dnipro from March 9 to March 10, 2024, which involved 10 teams. Results. The analysis of the responses from amateur athletes and students of higher education institutions in physical culture to the question "Do you feel the need to acquire theoretical knowledge in volleyball?" indicates that 15 of them (21.4%) do not need theoretical knowledge at all, 14.3% rely on the coach's knowledge, only 8 (11.4%) have a constant need for knowledge about volleyball, and 37 (52.8%) feel the need for theoretical knowledge "from time to time." Conclusions. The research established that our assumption as to the necessity of scientific substantiating the structure and content of theoretical preparation in volleyball is confirmed by the majority of respondents expressing a need for theoretical knowledge. This is a relevant issue which solution will enhance the quality of training for higher education students in the field of physical culture and sports.

Дослідження впливу фаз менструального циклу на функціональний стан кваліфікованої ветеранки спорту з дзюдо

Purpose: to investigate the influence of menstrual cycle phases on the functional status of a qualified female veteran judo athlete. Material and methods. The following methods were used in the study: analysis of scientific and methodological information and Internet sources; generalization of advanced practical experience; measurement of sensorimotor reactions and determination of heart rate variability indices; methods of mathematical statistics. A qualified veteran female judo athlete (Master of Sports of Ukraine) in the age category F2 (1983-1979) took part in the study. We performed 84 measurements of heart rate variability (n=42, HRV in the supine position; n=42, heart rate variability during the test task dedicated to measuring the choice reaction). The measurement was performed using two computer programs for mobile devices running iPadOS «Research HRV» and «HRV SR+CR» during morning hours (7-8 hours) and afternoon hours (17-18 hours). Results: analysis of the dynamics of changes in heart rate variability parameters obtained in the supine position indicates an increase in sympathetic activity in the follicular phase of the menstrual cycle. Analysis of comparisons of heart rate variability parameters in different phases of the menstrual cycle indicates that the greatest number of statistically significant (p<0,05) differences is observed in the first half of the day. These changes indicate the dynamics of the decrease in the tone of the sympathetic part of the autonomic nervous system in the follicular phase when performing test tasks provided by the computer program «HRV SR+CR». Analysis of the study results indicates that the indicators of heart rate variability are also influenced by the measurement conditions. The test tasks of the computer program «HRV SR+CR» provide cognitive load and concentration of attention, especially in the second stage, where it is necessary to choose the sought-after figure. During cognitive tasks there is an increase in the activity of the parasympathetic nervous system, which leads to an increase in heart rate variability. High level of heart rate variability is associated with better cognitive functions and adaptive response to stress. Consequently, these differences in heart rate variability obtained using the «Research HRV» and «HRV SR+CR» programs may be the result of interactions between physiological changes during the menstrual cycle as well as the influence of measurement conditions. Understanding the changes in heart rate variability indices during test tasks related to the manifestation of the choice reaction provides information about the influence of cognitive load and attention concentration on the functional state of the female athlete. This will allow to plan the training process of wrestling taking into account the phases of the menstrual cycle and functional capabilities that are inherent in high-skilled female athletes. Conclusions. The parameters of heart rate variability and sensorimotor reaction time provide information about the functional state of martial artists. Understanding of metabolic and hormonal processes in different phases of the menstrual cycle of qualified wrestlers will allow to optimize their training loads and recovery measures.

Використання теорії невизначеності при дослідженні показників просторового сприйняття в єдиноборствах

Purpose: to study the indicators of spatial perception of martial artists using the provisions of uncertainty theories. Material and Methods. Research methods: analysis and synthesis of scientific and methodological literature, psychophysiological measurements, mathematical and statistical methods using licensed programs RStudio and Numbers. The study was conducted in several stages. At the first stage, taking into account the peculiarities of martial artists' sports activities, a mobile application «Spatial Perception» was developed to assess their spatial perception. At the second stage, the use of the application in the field was tested and the capabilities of the mobile application were expanded in terms of obtaining detailed characteristics of measurements using the provisions of the theory of uncertainty. The study involved junior taekwondo athletes aged 14-17 years (n=25, qualification: 1st category and candidates for master of sports of Ukraine). Results: according to the measurements of the studied martial artists, it can be noted that the highest frequency of reaction time indicators lies within 583 ms (n=291). At the second stage of the test exercise, where the performer needs to react to non-moving 3D figures, there is an increase in the interquartile range by 22 ms and a violation of the symmetry of the data. It was at this stage that the largest value of the standard deviation was noted (SD=172,0 ms). This indicates a high variability of reaction time (V=22,7 %). Also, we can see an increase in reaction time at the fourth stage compared to the result of the third stage by 11,5 ms and an increase in the percentage of errors by 1,4 % (at this stage, the highest percentage of errors was recorded at 8,2 %). Based on the use of membership functions, fuzzy sets were created, which made it possible to evaluate each indicator on a scale from 0 to 1. The analysis of the test exercise performance by martial artists who have the category of KMS (candidate for master of sports) shows that the overall score for the entire test is «Good», the weighting factor is 0,74, which is closer to the «Excellent» score. It should be noted that the highest weighting coefficient was observed in the second stage of the test task. The high weighting factor (0,79) at this stage reflects the ability to quickly recognize 3D shapes in space based on the analysis of individual parts of the shapes. We can also note the low percentage of errors (3 %) at the fourth, most difficult stage. This may indicate the ability to maintain attention on the object and resistance to disturbing visual stimuli. According to the results of the martial artists who have the 1st category, it was noted that they performed the test exercise with a score of «Good» and have a total weighting factor of 0,34. The score at each stage of the test is «Good», but the values of the weighting coefficients are closer to the «Satisfactory» score. The values of the weighting coefficients demonstrate that the level of spatial perception of this group of athletes is below average. It is also worth noting the increase in the percentage of errors, especially at the fourth stage (11,7 %), which indicates a negative impact on the reaction time of additional visual stimuli. The biggest difference between weight coefficients of the studied groups was noted at the second stage and made 49 %, the smallest at the fourth stage – 27 %. Conclusions. The use of fuzzy logic methods is a promising area of activity and finds its application in sports activities. The levels of manifestation of spatial perception by weight coefficients have been determined. Thus, a group of sportsmen with a category of CMS received an overall mark for the whole test «Good»with a weight coefficient of 0,74, and martial artists of the 1st category received an overall mark for the whole test «Good» with a weight coefficient of 0,34. Comparison of results of the estimation of reaction time of martial artists with a category of CMS with sportsmen of the 1st category testifies that there are statistically significant differences between indicators (p<0,05). The use of the theory of uncertainty in the assessment of spatial perception makes it possible to create flexible assessment systems and allows combining different indicators into one complex result.

Autenthity of the indicators of complex visual-motor reaction for trap shooters

The aim of the study was to determine the validity and stability of choice reaction time testing in trap shooters. The following research methods were used: theoretical analysis and summarization of data from scientific and methodological literature and the Internet, medical-biological methods, pedagogical observation, and mathematical statistics methods. Relevant calculations were conducted using the MS Excel analysis software package and functions from the Statistica software package. The study involved 27 athletes of varying qualifications in trap shooting. Each athlete's reaction time was measured in ten attempts. Satisfactory reliability of choice reaction time testing was found among shooters of average skill level (Candidate for Master of Sports, 1st and 2nd categories) with a reliability coefficient of ICC=0.767. Excellent reliability of the test (ICC=0.933) was found in highly qualified shooters (Master of Sports and International Master of Sports). The tested choice reaction time methodology demonstrated acceptable informativeness (validity) and reliability (stability) for the training process of trap shooters.

The level of sportsmanship of pupils of the sports profile lyceum

The article examines the level of sportsmanship of 10th-grade pupils of sport’s professional college lyceum. The aim of the study is to determine the level of sportsmanship of 10th grade students of the lyceum and to investigate its dynamics over three years. The research was conducted during 2020-2022 on the basis of the general education lyceum of the Kharkiv Professional College of Sports. The number of participants was 210 people, the average age of the representatives was 15.46 years. To analyze the level of sports skills of lyceum entrants, we analyzed the percentage ratio of their sports qualifications. The results of the study showed that the percentage of the level of sportsmanship of the entrants to the general education lyceum of the Kharkiv Professional College of Sports in 2020-2022 years has a negative dynamic of the studied indicators: a decrease in the percentage of pupils with the title Candidates for Master of Sports of Ukraine from 10.7% in 2020 to 4 .7% in 2022; decrease in the percentage of pupils with the 1st sports category from 12.3% in 2020 to 9.4% in 2022; decrease in the percentage of pupils with II sports category from 43% in 2020 to 31.2% in 2022. There is a regular positive trend in the increase in the percentage of athletes with the III sports category from 24.6% in 2020 to 45.3% in 2022. The percentage of pupils with the 1st youth sports category who entered the lyceum of a specialized sports education institution in 2020, 2021 and 2022 did not actually change. Conclusion. The analysis of the study results of the level of sports skills of 10th-grade pupils of the specialized sports profile educational lyceum the during 2020-2022 showed a gradual deterioration of the level of their sports qualifications.

Immune status of students with different levels of physical activity

The nature of changes in the immune system during physical work is a complex process involving many different mechanisms. Research in this direction is an urgent problem. The purpose of the research was to study the indicators of cellular and humoral immunity in students with different levels of physical activity. A total of 77 male students were examined, consisting of 3 groups: 1) with a low level of physical activity (n = 32) – students who were not involved in sports activities on a regular basis; 2) students with an average level of physical activity (n = 22) – beginner sambo wrestlers without sports categories; and 3) students with a high level of physical activity (n = 23) – highly qualified sambo wrestlers – first-class athletes, candidates for masters and masters of sports. In students of all groups, the quantitative content of various phenotypes of lymphocytes in the blood was studied by flow cytometry; serum immunoglobulin levels by laser nephelometry; phagocytic parameters by traditional methods; and oxygen-dependent metabolism of neutrophils by chemiluminescence. In students with a high level of physical activity, the content of T and B lymphocytes in the blood was significantly increased compared to similar indicators of the group with a low level of physical activity and the group of students who did not participate in sports. The concentration of class G immunoglobulin in the blood serum of students with a high level of physical activity significantly exceeded the corresponding values in students with an average level and students not engaged in sports. The highest concentration of class M immunoglobulin was observed in students with high levels of physical activity. Phagocytic activity and phagocytic count in individuals with high levels of physical activity and neutrophils were significantly higher than those of students with medium and low levels of physical activity. The rates of spontaneous and induced chemiluminescence in the groups with high and medium levels of physical activity were significantly higher than in students with low levels. The studies carried out indicate the positive effect of regular training physical activity on the factors of humoral and cellular links of immunity in students in the conditions of the educational environment of a higher educational institution.

Ascertaining the Peculiarities of Athletes’ Adaptation Course to Post-Sports Life

Objectives. The purpose of the study was to identify the peculiarities of athletes’ adaptation to post-sport life under modern conditions of reality. Materials and methods. The study involved 36 athletes, Masters of Sports, aged 25 to 40 years, who had finished their professional sports careers in disciplines such as ballroom dancing, artistic gymnastics, football, swimming, and judo. The study used methods of analysis and generalization obtained from scientific-methodical literature and internet data, surveys, and psychodiagnostics: the “Differential Emotions Scale” by C. Izard, adapted by A. Leonova, the “Meaningful Life Orientations” method by D. A. Leontiev, an adapted version of the “Purpose-in-Life Test” (PIL) by James Crumbaugh and Leonard Maholick, as well as the “Zimbardo Time Perspective Inventory” (ZTPI) by Zimbardo, P. G., & Boyd, J. N. During the study results’ analysis, the following methods were used: frequency analysis — identification of the frequency of each emotion category (absolute frequencies), and a calculation of percentage values (relative frequencies) for each category relative to the total number of participants. This was also applied to determine the number of athletes belonging to each category of future plans and to define the components of the time perspective; descriptive statistics — calculation of the mean value for each survey scale; these values were used to compare mean values between different scales and to analyze the variability of responses by calculating the standard deviation; percentage calculation. Results. This study examined the post-sport adaptation of 36 athletes using psychodiagnostic methods, thereby uncovering a complex emotional landscape and a variety of future perspectives. The survey results showed that 43% of the respondents had not yet decided what they wanted to become in their post-sports life, indicating significant stress, negative emotions, and physical and psychological problems that require attention and support. A significant portion (40%) of respondents affirmed that they could envisage their future without sports, with 25% choosing to become coaches and 15% interested in sports-related professions. Only 17% of respondents considered their future in other fields. The study also found that 42% of athletes reported having a strongly negative attitude towards leaving professional sports, experiencing feelings such as despair, grief, anger, disgust, and confusion. Another 36% of athletes characterized their emotional state as anxious-depressive, which also requires attention. Meanwhile, 22% of respondents stated a positive emotional attitude towards ending their careers, demonstrating interest in new circumstances and their future, which helps them to transition effectively into new lives. The study results on life orientations revealed that athletes tended to be more focused on past achievements and current goals than on the future, which may complicate their adaptation to post-sports life. Nevertheless, 37% of athletes are oriented towards a positive future and are willing to make efforts to achieve the necessary goals. Therefore, the findings clearly indicate the need for post-sports support and increased attention to the large proportion of former athletes (79%), whose mental health depends on the timeliness and speed of measures taken by specialists. Conclusions. The transition process for athletes after ending their professional careers to a life without sports is defined as individually nuanced, complex, and prolonged; it depends on past career success, is accompanied by stressful situations and negative emotions, and often requires a sudden conclusion to preserve the sense of being a champion.

Cytokines as markers of non-functional overstrain in rowing athletes

BACKGROUND: Regular high-intensity exercise, combined with other stressors and lack of adequate recovery time, can cause a sustained pro-inflammatory response, leading to systemic inflammation and immune dysregulation. AIM: The aim of this study is to establish the prognostic effectiveness of proinflammatory IL-1β, TNFα, IL-8, anti-inflammatory cytokine IL-4 and myokine IL-6 as markers of dysfunctional overstrain and overtraining in rowing athletes. MATERIALS AND METHODS: A total of 47 male athletes aged 18–22 years were examined, specializing in rowing, 1st category, candidates for master of sports. Of these, 28 were dynamic (4 times). The control group included 24 healthy donors, men aged 18–22 years. Cardiac overstrain was diagnosed based on 24-hour ECG data: identification of ventricular and supraventricular extrasystoles in the absence of organic changes in the heart. The content of cytokines in blood serum was determined using the Human Cytokine/Chemokine Magnetic Bead Panel 1 reagents (Merck, Millipore) on a MagPix device. The research results were processed using parametric statistics methods. RESULTS: Rowing athletes show an increase in pro-inflammatory cytokines, which can be both a consequence of adaptive changes and a sign of long-term systemic inflammation. Determination of IL-6, IL-8, TNFα may be useful for assessing the body’s adaptation to training loads. The greatest changes in the level of pro-inflammatory cytokines are observed during the competitive period, and it should be taken into account that an increase in the anti-inflammatory cytokine IL-4 occurs in response to high levels of pro-inflammatory cytokines and is a sign of good adaptation. CONCLUSIONS: The greatest importance in the diagnosis of non-functional cardiac overstrain in rowing athletes should be given to an increase in IL-1α and IL-6 and an increase in TNFα against the background of a decrease in IL-4.

Motivational determinants of athletes’ self-realisation depending on their professional qualification

BackgroundIn the contemporary era, there is a growing emphasis on understanding the self-realization of personality, encompassing individual-psychological traits, abilities, knowledge, skills, and motivation, extensively studied in psychology. Notably, limited attention has been given to exploring motivational determinants influencing athlete self-realization based on their professional qualifications. This gap is particularly pertinent in Kazakhstan, where significant efforts are directed towards athlete preparation.MethodsEmploying a systemic approach by Bagadirova and Kudinov, the study views athlete self-realization as a multi-level phenomenon with interconnected components. A total of 180 athletes participated, including 60 professionals (average age 23.9), 60 amateurs (average age 31.1), and 60 Paralympians (average age 24.4). The methodological toolkit comprises four diagnostic techniques: E.A. Kalinin’s “Motives of Sports Activities” (MSA) questionnaire, S. Maddi’s resilience test adapted by D.A. Leontiev and E.I. Rasskazova, and S.I. Kudinov’s multidimensional questionnaire on self-realization.ResultsSignificant differences in motivational determinants and self-realization attitudes emerge across athlete groups based on their sports qualifications. Noteworthy aspects include declining in motivation among professional athletes of masters of sports and masters of sports of international class, and rigidity in life resilience among Paralympic athletes. Overall, self-realization levels are not high, with extremely low levels of professional self-realization in all three athlete categories.ConclusionsThe study’s scientific novelty lies in systematically organizing knowledge on fundamental motivational determinants impacting athlete self-realization according to professional qualifications. This research addresses the acute shortage of psychological studies in sports psychology for Kazakhstan, which is still in its early stages. The findings underscore the need for targeted interventions by coaches and sports psychologists to enhance motivation levels, especially among elite athletes, and foster resilience, particularly in Paralympic athletes, ultimately advancing the field in the country.

The Single Nucleotide Variant rs17602729 (C34T) of the <i>AMPD1</i> Gene is Associated with Athletic Qualification and Competitive Distance in Caucasian Cyclical Sports Athletes

All physiological processes necessary for high athletic performance, including energy production in skeletal muscles and the peculiarities of metabolic processes (phosphogenic pathway, glycolytic, aerobic) are genetically determined. The enzyme Adenosine Monophosphate Deaminase is an important regulator of skeletal muscle energy metabolism during exercise. The identification of genetic biomarkers that determine the effectiveness of ATP resynthesis is one of the priorities of sports genetics. (1) Background: To study the associations of SNV rs17602729 (C34T) allelic variants and genotypes of the AMPD1 gene with qualification and competitive distance in Caucasian athletes of the Southern Urals. (2) Methods: 173 people of European origin who lived in the Southern Urals region took part in the study. The first group included 123 cyclical sports athletes (speed skating, running disciplines in track-and-field): SD (short distances) subgroup ‒ 40 sprinters (mean - 22.1 ± 2.4 y.o.); MD (middle distances) subgroup ‒ 38 athletes (mean - 20.1 ± 2.5 y.o.); subgroup LD (long distances) – 45 stayer athletes (mean - 22.6 ± 2.7 y.o.). The control group consisted of 50 healthy non–athletes (mean ‒ 21.4 ± 2.7 y.o.). We used the Step One Real-Time PCR System (Applied Biosystems, USA) device for real-time polymerase chain reaction. (4) Conclusions: the common allele with rs17602729 of the AMPD1 gene can be considered as a biomarker associated with short and medium competitive distances. It can help in the selection of elite athletes who require effective performance of anaerobic sports loads. The variable T allele is an unfavorable biomarker (negative predictor) for achieving the status of Honored Master of Sports and Sport Master of International Class in athletics and speed skating, regardless of the competitive distance.

Study of lipid metabolic indicators in rowers at different exercise intensities

Sports training in cyclic sports with the predominant manifestation of endurance, including rowing, is associated with processes of adaptation to the load for 1 to 1.5 hours. The sources of energy during long intensive training are not only muscle glycogen, but also fat and fat-like substances. In this connection, the authors studied the processes of restructuringand adaptation of the organism of rowers to different intensities of physical load by lipid metabolism. The study involved 15 athletes (males) aged 18 to 21 years with the sport qualification «Candidate Master of Sports in Rowing». The main fractions of the lipid spectrum were studied: phospholipids, free cholesterol, non-esterified fatty acids, mono-, di-, triacylglycerols, cholesterol esters, as well as the spectrum of lipoprotein fractions: chylomicrons, pre-β-lipoproteins, remnants, β-lipoproteins, α-lipoproteins, a complex of non-esterified fatty acids with albumin. The studies showed that among the main fractions of the lipid spectrum, the concentration of the non-esterified fatty acid complex was higher than normal by 22.6% after the 7-minute exercise and by 49.6% after the 60-minute exercise, i.e. good functioning of the transport form for free fatty acids, which is important for energy exchange, was recorded. There was a 12.8% increase in phospholipids after the 7-minute exercise and a 17.6% increase after the 60-minute exercise. There was also a 25.3% increase in free cholesterol after the 7-minute exercise and a 36.8% increase after the 60-minute exercise. Unesterified fatty acid content was normal (greater than 0.45 g/l) before the test exercise, but increased by 49.1% (p < 0.05) after the 7-minute exercise. At the 60-minute exercise, this increase flattened and decreased by 17.7% (p<0.05) compared to the 7-minute exercise, but remained 22.6% (p<0.05) above the initial value. It is concluded that non-esterified fatty acids make an important contribution to the supply of lipids for oxidation during endurance exercise.

Correlations between amplitude rheovasographic indicators of the crus and anthropometric dimensions in volleyball players women of different somatotypes

Somatotypological features of the body can be considered as a lever of sports achievements, because they have an effect on the efficiency of the energy supply system, physical capacity, ability to adapt, and the state of the cardiovascular system. The purpose of our work is to reveal the correlations between the amplitude parameters of the crus rheovasogram and anthropometric indices in young volleyball players women of different somatotypes. A comprehensive clinical and laboratory study of the state of health and physical development of 108 volleyball players women aged 16-20 years (youth period of ontogenesis) of high sports ranks (from II adult to masters of sports) was conducted. Rheovasographic parameters of the crus in volleyball players women were determined by the method of tetrapolar rheocardiography on a certified computer diagnostic multifunctional complex. Anthropometric determination of the total dimensions of the body and chest, pelvis, limbs, and head was performed according to the recommendations of Shaparenko P. P. (2000), somatotypological – according to the Heath-Carter calculation method (1990). After somatotyping, it was established that 28 women volleyball players belonged to the mesomorphic type of constitution, 27 women athletes were assigned to the ectomorphic and ecto-mesomorphic somatotypes each, and 26 women volleyball players belonged to the medium intermediate type. The analysis of the obtained results was carried out in the license program "Statistica 5.5" using correlation analysis according to Spearman. We found that highly professional women volleyball players, who have different body types, differ in the strength and number of significant correlations between the amplitude rheovasographic parameters of the crus and anthropometric dimensions. The most numerous (18.64 % of the possible correlations, of which 6.82 % are reliable) and the strongest (3 strong with a correlation coefficient from -0.64 to -0.73) correlations between the amplitude indicators of the crus rheovasogram and parameters of the external body structure were recorded in volleyball players women of the middle intermediate somatotype. Ectomorphs had the lowest number and strength of relationships (3.18 % of possible correlations, only 1 reliable). Individual longitudinal dimensions of the body, chest girths and its diameters, transverse dimensions of the pelvis, and skinfold thickness were most often correlated with the amplitude indicators of the crus rheovasogram in women volleyball players of various constitutional types. Determining the features of the correlations is the basis for assessing the harmony of the physical development of women volleyball players and conducting further statistical modeling to determine their appropriate crus rheovasographic indicators.

Электофизиологические корреляты точности выстрела у лучников разной квалификации

The purpose of this study was to establish electrophysiological markers of archers’ shot accuracy by correlations between performance and electroencephalogram (EEG) power parameters in athletes of different ranks compared. Materials and methods. The research involved 20 archers shooting the classic bow, who were divided into two groups of 10 subjects each by sports rank: Candidate for Master of Sport and First-Class Sportsman. EEG was recorded using the Encephalan-EEGR-19/26 device (Medikom MTD, Taganrog) in 19 leads according to the 10–20 system. Reference electrodes were placed on the earlobes. Results. It was found that shot accuracy of high-level archers (Candidate for Master of Sport) is marked by an increase in alpha and theta EEG power in the occipito-temporal-frontal regions of the left hemisphere during the preparatory phases of the exercise, and then, by the dissociation of the powers of these frequency ranges while aiming. In contrast, shot accuracy of lower level archers is characterized by a decrease in the power of the main rhythm in the left temporal lead during the first phase of the shot. In the total sample of athletes (regardless of rank) no significant correlations were found in any of the 3365 cases of evaluation of this analytical parameter. Thus, the electrophysiological markers of bow shot accuracy differ between Candidates for Master of Sport and First-Class Sportsmen. The sevenfold greater number of significant correlations (p < 0.05) between EEG parameters and shot accuracy of Candidates for Master of Sport compared to First-Class Sportsmen indicates a high level of development of the Bow Shot functional system of purposeful movements as the skill improves, as well as testifies to the synergism of physiological processes when performing the exercise by Candidates for Master of Sport. The established facts will expand coaches’ physiological understanding of the mechanism of purposeful movements in order to objectively predict sports results.

Features of Special Physical Training for Female Athletes in Cossack Fight during Different Phases of a Specific Biological Cycle

Background. The training methods for female athletes’ special physical training are considered to be a crucial aspect of the overall preparation system for competitive activity, which requires correct planning and implementation. Objectives. The study aimed to determine the impact of special preparatory exercises on female athletes engaged in Cossack Fight, depending on the characteristics of the body’s functioning in different phases of a specific biological cycle. Materials and methods. The study involved 20 female athletes aged 17-24 years who participated in Cossack Fight, and were divided into experimental and control groups. The qualification levels of female athletes in the experimental group were as follows: 1 – Master of Sports of Ukraine; 2 – Candidates for Master of Sports of Ukraine; 7 – 1 sports category. The control group comprised: 1 – Master of Sports of Ukraine; 2 – Candidates for Master of Sports of Ukraine; 7 – 1 sports category. The training program lasted for ten weeks and took place at a special preparatory and control-preparatory stage of the preparatory period. Results. The findings showed that the variability of training loads, depending on the phase of the ovarian-menstrual cycle, had a statistically significantly greater impact on the indicators of special physical fitness in the female athletes’ experimental group compared to the control group. Thus, after ten weeks of special physical training, the experimental group demonstrated a significant increase in the number of direct punches on the punching bag in 4 seconds (t=4.07; p<0.001) and 15 seconds (t=3.62; p<0.001), throwing a medicine ball weighing 3 kg (t=2.92; p<0.05), repeated circular kicks on the punching bag to the torso level for 15 seconds (t=4.22; p<0.001), direct punches on the punching bag for 1 minute (t=4.23; p<0.001), repeated circular kicks on the punching bag for 1 minute (t=4.49; p<0.001), and jumping rope after exercise (a 3-minute punching bag workout) for 1 minute (t=3.55; p<0.001). Conclusions. The implementation of an experimental program for special physical training of female athletes, in accordance with the phases of the ovarian-menstrual cycle, into the general system of preparation for competitive activity, leads to a statistically reliable improvement in key indicators of physical fitness.

Gender peculiarities of cortisol, testosterone and vitamin D blood levels in athletes

Objective. To assess the gender characteristics of the concentration of cortisol, testosterone and vitamin D in blood serum in athletes, and to analyze the correlations between vitamin D levels and the hormonal status of athletes. Materials and methods. 52 athletes (32 men and 20 women) were examined, their age was 17-23, their sports specialization was cyclic sports (kayaking) and acyclic sports (gymnastics, martial arts), and qualification – candidates for master of sports, masters of sports. Venous blood was taken in the morning on an empty stomach before training loads. Determination of total testosterone and cortisol concentration and assessment of vitamin D level by determination of its metabolite 25(OH)D (25-hydroxyvitamin D) in blood serum was performed by immunochemiluminescent method. Results. In male athletes with vitamin D deficiency, serum testosterone concentration and anabolic index were significantly lower (p = 0.0093 and p = 0.0015, respectively) compared to the same indices in the group of athletes with normal vitamin D content. Correlation analysis in male athletes revealed a positive correlation between serum 25(OH)D (25-hydroxyvitamin D) content and testosterone concentration (r = 0.36; p < 0.05), as well as between 25(OH)D content and anabolic index (r = 0.42; p < 0.05). The group of female athletes with vitamin D deficiency showed significantly lower serum testosterone concentration compared to athletes with normal vitamin D levels (p = 0.0112). No significant relationships were found between vitamin D levels and cortisol concentrations in both male and female athlete groups. Conclusion. The study results can be the evidence of modulation effect of vitamin D on testosterone levels in male athletes, indicating the importance of controlling and correcting vitamin D content in the dynamics of the training process.

Improvement of the special running training of the highly qualified triathlete

Abstract. Introduction. The problem of improving the preparedness of highly qualified athletes requires solving questions about the individualization of the training process based on taking into account the sports form of the athlete, the specific conditions of the competitive distance, as well as substantiating the intensity and volume of various types of training and their importance depending on the period of training. The purpose of the study is to develop an individual running training program for triathlon and experimentally check its effectiveness. Methodology. The experiment was conducted as part of the preparations for the Ukrainian triathlon championship. A student of the Cherkasy National University named after Bohd Khmelnytsky, who is a master of sports of Ukraine, took part in the study. The formative part of the experiment involved the development of an individual running training program, its implementation in the training process and analysis of its effectiveness. The following research methods were used in the study: analysis of scientific and methodical literature, pedagogical testing, pedagogical experiment. The main characteristics of special running fitness were measured using GPS speedometer. Results. The effectiveness of the individual running training program for the Ukrainian Winter Aquathlon Championship was developed and experimentally verified, which was based on information about the current state of the athlete's sports form, the priorities of different types of training were determined depending on the training period and the justification of individual intensity, pace, volume and combination of different types of training. The content, forms, methods and means of preparation for the final competitions of the season have been improved. Provisions on the methodology of managing the training process and competitive activity in triathlon have gained further development. Conclusion. The effectiveness of the presented individual running training program has been experimentally proven.

Physiological and metabolic effects of using interval training loads by athletes specializing in race walking in different training periods

Purpose: to evaluate the efficiency of using interval training loads by athletes specializing in race walking in different training periods using biochemical and physiological indicators.
 Material and methods. The study included 22 athletes specializing in race walking aged 19-30 years with 6-15 years of sports experience and qualifications of Master of Sports (MS) and International Master of Sports (ICMS). The athletes performed physical tests - 500m x 20 times and 1000m x 12 times. The study was conducted both at rest and during the recovery period after performing the physical tests. Physiological and biochemical control with the determination of lactate content in the blood, heart rate, and sports performance was used to assess the direction and effectiveness of the training process in different periods of athletes' training.
 Results. Used interval loads confirm the correct choice of the training load program, which has shown its effectiveness in the competitive period of training compared to the preparatory period: it contributed to the improvement of test results, speed capabilities and high-speed endurance of athletes. It has been established that the use of interval training, accompanied by the accumulation of lactate up to 12 mmol·l-1 in the blood and an increase in heart rate over 180 min-1, leads to an improvement in sports performance.
 Conclusions. The used interval training loads contributed to the improvement of sports result in the competitive period in comparison with the preparatory period when overcoming series of 500 m distance by 2,08s, and 1000 m distance - by 6,56s, that testifies to the improvement of motor qualities - speed and high-speed endurance of sportsmen in the competitive period in comparison with the preparatory period.

Динаміка показників техніко-тактичної підготовленості дзюдоїстів 19-21 років середніх вагових категорій під впливом запропонованих моделей підготовки

Purpose: to investigate the dynamics of indicators of technical and tactical preparedness of judokas of 19-21 years old of middle weight categories under the influence of the offered models of training. Material and methods. Methods of the research: analysis and generalization of scientific and methodical literature; timekeeping; analysis of protocols and video recordings of fights of judokas of 19-21 years old of weight categories up to 60 kg, up to 66 kg; pedagogical experiment; methods of mathematical statistics. The pedagogical experiment was attended by 20 judokas aged 19-21 years (Candidate for Master of Sports, Master of Sports of Ukraine), who were divided into control and experimental groups of 10 athletes each. We analyzed 60 fights of sportsmen of the experimental and 60 fights of the control groups. Results: after the pedagogical experiment, the number of fights that ended early increased in the judokas of the experimental group (the beginning of the experiment - 66 %, the end - 77 %) and the number of fights within the allotted time and in additional time decreased. This suggests that the fights of the athletes of the experimental group are quite dynamic, and the use of combinations and counterattacks allows to finish the fight before the allotted time. Also, the number of counterattacks and combinations of techniques during fights increased statistically significantly. Thus, the number of application of the combination technique increased from 18 to 23 (t=3,61; p<0,05), and the counterattacking from 21 to 31 (t=5,73; p<0,05). Also, the increase in the total number of real attempts to perform technical actions from 104 to 138 was established. A more detailed analysis showed that in the stand position sportsmen of the experimental group performed a smaller number of real attempts to perform technical actions in comparison with the beginning of the experiment (beginning - 103, the end - 97). Also, there is an increase in the effectiveness of technical actions (beginning - 24 (23 %), end - 35 (36 %)) estimated by judges as a half-victory (beginning - 12, end - 20) and as a pure victory (beginning - 12, end - 15). In the ground position, an increase in the number of real technical actions is observed. Thus, at the beginning of the experiment this indicator was 30 attempts, at the end - 38. Due to this the total number of real attempts of technical actions increased. Also, there is an increase in the effectiveness of technical actions (beginning - 14 (47 %), end - 19 (50 %)) evaluated by judges as half a victory (beginning - 5, end - 8) and as a pure victory (beginning - 9, end - 11). Conclusions. It is established that under the influence of the offered models of technical and tactical preparation the use of combinations and counterattacks during a fight which allows to finish it earlier than the allotted time in sportsmen of the experimental group increased. The increase in the total number of real attempts to perform technical actions, as well as certain actions (throw with the emphasis of the lower leg in the thigh, picking up under one leg, turning with hands), their effectiveness was established. Also, there is a decrease in the number of throws from the knees in a fight and an increase in its effectiveness. Keywords: competitive activity, judo, training, weight categories, indicators, modeling, models.

Assessment of the relationship between psychophysiological compatibility and sports qualifications in rhythmic gymnastics

The aim of this study was to determine the relationship between the level of psychophysiological compatibility (PPC) and sports qualifications in group rhythmic gymnastics. 20 girls from 4 rhythmic gymnastics sports teams of various sports qualifications participated in this study: one team consisted of athletes of the first adult sports category, two teams – of candidates for master of sports, one – of masters of sports. The level of PPC in the teams was assessed using the hardware and software complex SIGVET-TEAM and the Pearson correlation coefficient (r). The positive relationship between the growth of PPC and sports qualifications was revealed as a result of the study. At the same time, the analysis of the individual result of athletes demonstrates a great variability in the specific contribution within the groups. This fact raises new questions about the importance of PPC at various stages of athletic training in group rhythmic gymnastics.

Pedagogical control of technical and tactical actions of highly skilled opposite hitters in women's volleyball in the process of competitive activity

The final result in team game sports does not reflect complete information of the strengths and weaknesses of the players. Therefore, the control of competitive activities in sports games will provide objective information for improving of team management. The purpose of the research is to establish the structure and dynamics of technical and tactical actions of highly skilled opposite hitters of women's Superleague of Ukraine in the process of competitive activity. Material and methods of research. The study was conducted during the competition period of the 2017-2018 season and provided for pedagogical observation and video shooting of the official games of the Ukrainian Volleyball Championship among women's Superleague teams. The study involved 9 highly qualified opposite hitters the masters of sports of Ukraine.Results and conclusions. The structure of the technical and tactical actions of opposite hitters in the process of competitive activity is consisted of large part of blocks (34,0±2,9 %) and spikes (28,1±2,0 %). Opposite hitters perform the spikes (42,3±4,5 %) and blocks (33,8±3,2 %) most effectively among all technical and tactical actions. The game of defense and passes are a "weak spot" of the opposite hitters, as the ratio of inefficient technical and tactical actions are 42,2±5,9 and 56,1±9,0 %, respectively. There is a gradual decrease in the effectiveness of technical and tactical actions by the opposite hitters during the game. Thus, the part of effective serves decreased from 19,8 % in the first set to 10,4 % in the fourth, effective defense actions – from 35,0 to 23,3 %, spikes – from 36,1 to 25,6 %, blocks – from 28,7 to 28,5 %. The analysis of the results allows to recommend in the training process of the opposite hitters to pay special attention to the implementation of the attack potential of serves, increase the effectiveness of the defense, expanding the stock of tactical combinations and game models, improving general and special endurance