Modern approaches to studying the technique of long jump

Relevance. Instrumental research in athletics has been carried out for more than a decade, which contributes to the objectification of the assessment of the technical performance of a movement in various athletics disciplines. Modern means of diagnosing the biomechanical parameters of a jump make it possible to more and more accurately assess the quality of the technique of various phases of movement, primarily the most important ones - run-up and repulsion. However, the largest amount of research in long jumps refers to athletes of the highest or high qualification (CMS, MS, MSMK). At the same time, it is known that important technical features and key qualities necessary for success in this kind of athletics are formed at the training stage. The purpose of the work is to determine the main approaches to the study of the technique of long jumps of athletes of different levels of preparedness. Research methods. The main method of scientific research was the analysis of scientific literature data of domestic and foreign authors. Research results. The analysis of literary sources showed that most of the studies of the long jump technique were carried out with the participation of highly qualified athletes. At the same time, the presence in some works of experimental material obtained on athletes of lower qualification indicates significant differences in individual parameters of the long jump among athletes of different qualifications. Thus, in elite athletes, the speed at the last steps of the run, the angle of setting the leg for repulsion, the angle of flexion in the knee and hip joints during repulsion is significantly higher than that of less qualified athletes. The research methods that have appeared in recent years, computer video analysis and the OptoJump Next electronic measuring system make it possible to study the final part of the run in more detail and determine not only the «pure» speed of the jumper, but also the ratio of flight time and support at each step, the instantaneous speed at each step, compare the stride length of the fly and take-off legs on the last steps, and also obtain a number of other run-up data. This will allow you to more accurately understand the specifics of the run in the long jump, to obtain not only generalized data, but also individual indicators for each individual jumper. Approximately 15-20% of author's works carried out on various contingents oflong jumpers (from the III sports category to the level of a candidate for a master of sports) used video analysis of repulsion. The joint use of high-speed video recording and the OptoJump Next method, due to the addition of one to the other, will allow more comprehensive and objective information on the main parameters of the jump technique.