Özet:

The problem of developing the theoretical and methodological foundations for long-term young athletes’ development is closely linked with the problem of improving the training process as a whole and it is one of the main problems in the modern science of physical education and sports training. In different years Ozolin (1970), Matveev (1995), Filin (1995), Platono (1997) and other specialists developed a wide range of issues concerning the sports reserve preparation. Establishing of the strict correlation between the system of the long-term athlete development management and specific requirements of the competitive activity in the specific sports disciplines is proposed as one of the main directions of further improvement of the modern sports training methods, which implies a comprehensive study of the multi-year structure and dynamics of competitive activity and athletes' proficiency. In sport games, the solution of this problem is particularly difficult, on the one hand, due to the lack of an objectively measurable result, and on the other hand, due to dependence of the latter on a whole range of factors of different nature, with an uneven degree of compensability and interdependency at various stages of  long-term athlete development. The scientific novelty of the study is determined by solving one of the most important problems of sports theory and methodology associated with identifying and studying the patterns of age-related changes in the structure of competitive team activity and athletes’ proficiency in table tennis, which make it possible to significantly improve the management of the long-term development of sports reserve due to the development and introduction into practice of a scientifically based model of building the long-term athlete development and the system of the young athletes’ prospects projection in table tennis.

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