Modeling of competitive activity of skilled athletes specialized at 1500 m distance on short-track skating
Annotation. Background: Models of competitive activity at the 1500 m distance on short-track skating are developed on the basis of defining the relationship between sports results and major characteristics which describe speed of running at different parts of the distance. Material: we analyzed reports of competitions at the European and World Championships, World Cups 2007-2011. The dynamics of the speed finalists of the competition at the 1500 m -in hits (n = 33), quarterfinals (n = 34),
... finals (n = 32) and finals (n = 39). Results: it was determined that for a distance of 1500 m short track skating is the most appropriate model with factors of influence: the speed of the first to sixth part of distance , the speed difference between the first and second half of the distance, time of the slowest circle, the difference between the time of the slowest and fastest circles. Conclusions: time of overcoming of distance will diminish at the rational change of model indexes. It will allow to increase possibility of output in the next circle of competitions and accordingly improve a place in final protocol. Introduction 1 Recent short track has become very popular as a kind of skating, but very quickly transformed in independent kind of sports. This fact requires seeking for new ways and methodic solutions of training process's construction. Effectiveness of controlling of training process is closely connected with simulation -the process of building, studying and using of models for determination and specifying of characteristics and optimization of training process and participation in competitions  . One of simulation's directions is development of models of competition activity. For this purpose the most substantial for this kind of sports characteristics are determined, which are to some extent independent. Model characteristics of competition activity have been created for many kinds of sports, including: track and fields-; swimming ; bicycle racing ; skating -[7, 8, 9]. In spite of rather high level of scientific researches on this problem, unfortunately for short track the problems of simulation have not been sufficiently studied. There are models of straight skating 2], of organization of training loads and dynamics of highly qualified short-trackers' state in annual cycle of trainings as well as anthropometric model characteristics  and models of lower limbs' muscular strength . At the same time there is practically no information, connected with simulation of competition activity for different distances. All, above said, predetermined direction of our researches. The work has been fulfilled as per combined plan of scientific & research works in the field of physical culture and sports for 2006-2010 of Ministry of Ukraine on family, youth and sports, by subject 184.108.40.206.8 "Perfection of sportsmen competition activity's structure in cyclic kinds of sports (on materials of bicycle, skating and ski racings)" state registration number 106U010774, and in compliance with combined plan of scientific & research works in the field of physical culture and sports for 2011-2015 of Ministry of Ukraine on education, science, youth and sports by subject "Building of training and competition activity of sportsmen in Olympic cycles on the stages of many years perfection", number of state registration 0112U003205. Purpose, tasks of the work, material and methods The purpose of the research is to develop models of competition activity for 155 meters short track on the base of determination of interconnection between sports results and main characteristics of racing speed on different segments of distance. The methods of the research: analysis and generalization of scientific-research literature, official short track competitions' reports; mathematical simulation; methods of mathematical statistics. Material for research: analysis of competitions reports was fulfilled at world and European championships, stages of World Cup 2007-2011. We researched dynamics of finalists' speed at 1500 meter distance -in hits (n=33), od quarter-finals (n=34), semifinals (n=32) and finals (n=39). Results of the research Building of regression models of competition activity at 1500 meters distance in short track was carried out in compliance with algorithm, presented in fig. 1 .