ASSESSING THE EFFECTS OF DIFFERENT TRAINING PROGRAMS FOR PHYSICAL PREPARATION AND SPORTS PERFORMANCE IN POWER LIFTERS WITH VISUAL IMPAIRMENTS OF HIGH QUALIFICATION

Systematic overload, which is a training characteristic of powerlifters with visual impairments of high qualification has a negative impact on the functioning of body systems and the course of the underlying and comorbidities. This determines the relevance of the scientific substantiation of training programs for athletes with visual impairments as the most important component of ensuring the achievement of sports results in powerlifting. This study aimed to experimentally substantiate the effectiveness of the impact of various training programs on physical fitness and athletic performance of powerlifters with visual impairments of high qualification. To solve the goal we used methods of analysis of scientific and methodological literature, pedagogical observation, pedagogical experiment and methods of mathematical statistics. The study involved 16 visually impaired athletes who were members of the national powerlifting team. The pedagogical experiment was based on testing the effectiveness of two training programs, which differed in the parameters of the load components in the annual training and macrocycle periods. After the pedagogical experiment, the experimental group showed reliable indicators of growth on all tests and improvement of sports results, and athletes of the control group increased physical fitness in three tests out of five and sports results are available only in squat and bench press. In both groups, the highest growth rates in the level of development of physical qualities were found in tests aimed at determining the level of development of strength and flexibility. Comparing the results of the introduction of various training programs in the training process of powerlifters with visual impairments, we can conclude that the performance of the experimental group is much higher than among the powerlifters of the control group.

PHYSICAL PREPARATION OF CADETS OF EDUCATIONAL INSTITUTIONS OF THE FSIN OF RUSSIA IN THEIR SPARE TIME

This article considers the importance of physical training classes for specialists of institutions under the jurisdiction of the Federal Penitentiary Service, provided for by educational projects and programs. As well as the reasons for the need to expand the possibility of authorized independent classes of students in extracurricular time.

Brass Multiphonics in Jazz

<p>Multiphonics is the production of more than one tone at a time from an instrument that would normally play a single line. The aim of this work is to identify and explore the elements of multiphonics as played by jazz brass players and to examine the production and development of multiphonics with particular reference to Albert Mangelsdorff’s mature technique. The research procedure includes a literature review, transcription and analysis of relevant music, and reflection on personal practice. The findings and discussion are used to draw conclusions in order to derive applicable testable techniques. The research points to where the accretion and extension of Mangelsdorff’s playing style may lead, and demonstrates the acquisition of discovered multiphonic techniques by the performance of transcriptions and new or extended musical applications of multiphonics in two recorded assessed recitals. The body of the paper gives brief biographical information on the main practitioners, with specific focus on how each of them acquired particular technical elements. Reference is made to prior research and specific recordings and players are mentioned in regard to their innovations and stylistic techniques. Elements were discovered and explored in the researcher’s own practice over the previous decade and specifically the duration of the masters study from February 2008 – June 2009, and the effects of various approaches and exercises are discussed. This discussion includes the areas of mental and physical preparation, limitations and parameters of the physical playing, and the method used for developing multiphonic technique. The summary identifies the main findings and makes specific reference to how they might relate to practice. It suggests areas where further research can be developed to support the acquisition and practical application of multiphonic technique and extended techniques in brass performance. The work is presented as a paper and accompanying DVD that demonstrates findings as played by the researcher in live recitals.</p>

Strength and power training in basketball

Modern basketball is characterized by a high intensity activity throughout the game, which requires optimal physical condition for the players. The increasing demands of modern basketball and inadequate physical preparation also result in an increased number of sports-related injuries. Physical preparation in the form of strength and power training is part of the strategy in preventing and reducing such injuries, but also in improving the performance of basketball players in the game. Strength and power have a direct impact on improving the performance of basketball players, but also influence on improving other motor skills and characteristics of basketball players. As the benefits of the strength and power training are known and recognised, this review paper aims to point out some specifics of the training process in the development of strength and power of basketball players. The paper points to the importance of being systematic and progressive in the long-term development of power , but also within the annual cycle of training. In addition, the paper provides some specific guidelines for conducting strength and power training within the various stages of the preparation and competition periods, with an emphasis on the functionality and specificity of the training.

Brass Multiphonics in Jazz

<p>Multiphonics is the production of more than one tone at a time from an instrument that would normally play a single line. The aim of this work is to identify and explore the elements of multiphonics as played by jazz brass players and to examine the production and development of multiphonics with particular reference to Albert Mangelsdorff’s mature technique. The research procedure includes a literature review, transcription and analysis of relevant music, and reflection on personal practice. The findings and discussion are used to draw conclusions in order to derive applicable testable techniques. The research points to where the accretion and extension of Mangelsdorff’s playing style may lead, and demonstrates the acquisition of discovered multiphonic techniques by the performance of transcriptions and new or extended musical applications of multiphonics in two recorded assessed recitals. The body of the paper gives brief biographical information on the main practitioners, with specific focus on how each of them acquired particular technical elements. Reference is made to prior research and specific recordings and players are mentioned in regard to their innovations and stylistic techniques. Elements were discovered and explored in the researcher’s own practice over the previous decade and specifically the duration of the masters study from February 2008 – June 2009, and the effects of various approaches and exercises are discussed. This discussion includes the areas of mental and physical preparation, limitations and parameters of the physical playing, and the method used for developing multiphonic technique. The summary identifies the main findings and makes specific reference to how they might relate to practice. It suggests areas where further research can be developed to support the acquisition and practical application of multiphonic technique and extended techniques in brass performance. The work is presented as a paper and accompanying DVD that demonstrates findings as played by the researcher in live recitals.</p>

ACTUAL PROBLEMS OF TRAINING OF HIGHLY QUALIFIED BASKETBALL PLAYERS

The work presents the study results of the technical and physical preparation level of highly qualified basketball players, as well as the level of development of their aerobic and anaerobic functions, taking into account play functions. According to the study results, the need was found out to increase the efficiency of the high-level players' training system, that, despite positive changes, the training system used in basketball does not fully ensure any sufficient impact upon the energy functions of highly qualified basketball players.

The association between competitor level and the physical preparation practices of amateur boxers

Physical training, testing, and monitoring are three key constitutes of athlete physical performance; however, there is a currently a lack of information on the prevalence of such methods in amateur boxing. This study aimed to explore the physical preparation practices of senior elite (SEB) and senior development (SDB) amateur boxers, and to determine whether these practices were discriminated by competitor level. One hundred and one amateur boxers (SEB n = 59, SDB n = 42) were surveyed on their understanding, perceptions and application of physical training, monitoring, and testing practices. SEB were associated with strength/power training (SEB 78%, SDB 50%, P = 0.005), monitor of training intensities (SEB 68%, SDB 40%, P = 0.006), and performing regular fitness testing (SEB 76%, SDB 50%, P = 0.006), compared to SDB. Likewise, SEB were twice as likely (56%) to have their physical preparation managed by a strength and conditioning (S&C) coach or sport scientist, compared to SDB (26%; P = 0.005). For the first time, these data demonstrate the extent to which competitor level is associated with preparatory practices in amateur boxing. Cost was identified as the main barrier in implementing several forms of scientific support in SDB. These data serve as a framework to enhance preparatory practices across different competitor levels in amateur boxing. This might include boxer and coach education on the benefits to a more scientific approach, and the use of cost-effective methods to develop, monitor and assess amateur boxers physical performance. This may be of particular importance where boxers are not funded, such as the SDB in the current study. However, this work may also be used to emphasise the importance of strength/power training, physical fitness testing and monitoring at the elite level of amateur boxing.

Preparation of Ag0 Nanoparticles by EDM Method as Catalysts for Oxygen Reduction

At present, platinum-based catalysts are the best cathode catalysts, but due to their high prices, they are difficult to use widely. Under alkaline conditions, silver is a better low-cost substitute. Here, a physical preparation method—electrical discharge machining (EDM)—is used to prepare Ag0 nanoparticles. The method is simple and has a high yield. The diameter of prepared nanoparticles is about 30 nm and the nanoparticle surface is rich in defects. These defects enhance the adsorption of O2. In addition, defects can cause tensile strain on the silver catalyst, causing the d-band center of silver to move upward. The defects and the upward shift of the d-band center jointly improve the adsorption energy and catalytic performance of Ag0. This work provides a new method for the engineering construction of surface defects and the preparation of metal catalysts.

INFLUENCE OF ALTITUDE ON FLEXIBILITY OF ELITE WRESTLERS GRECO-ROMAN STYLE

It is widely assumed that wrestling is a sport posing high requirements as regards one’s physical qualities strength and endurance. A lot of specialists, however, point out the necessity of harmonious and balanced development of all motor qualities, including flexibility. This research is aimed at wrestlers’ physical preparation and more specifically the dynamics in the physical quality flexibility. We attempted to find out whether altitude influences the manifestation of the physical quality flexibility and to what extent. The research was done among 13 wrestlers from Bulgarian National team, Greco-Roman style, men. We measured the flexibility of the spinal cord and coxofemoral joint during training camps held at low and high altitude. The tests used (Т1, Т2, Т3 and Т4) are easy to be applied. The results were processed statistically and further discussed. It is clear that there were statistically significant differences only along T2, and there was no reliable difference in the results along the rest of the tests - Т1, Т3 and Т4 at a low and high altitude.