On the use of optoelectronic motion registration systems in biomechanical analysis of strike techniques

Kashuba Vitaliy, Litvinenko Yurii, Vako Ilia. On the use of optoelectronic motion registration systems in biomechanical analysis of strike techniques. Journal of Education, Health and Sport. 2017;7(3):939-948. eISSN 2391-8306. DOI http://dx.doi.org/10.5281/zenodo.4546285 http://ojs.ukw.edu.pl/index.php/johs/article/view/7848 The journal has had 7 points in Ministry of Science and Higher Education parametric evaluation. Part B item 1223 (26.01.2017). 1223 Journal of Education, Health and Sport eISSN 2391-8306 7 © The Author (s) 2017; This article is published with open access at Licensee Open Journal Systems of Kazimierz Wielki University in Bydgoszcz, Poland Open Access. This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited. This is an open access article licensed under the terms of the Creative Commons Attribution Non Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted, non commercial use, distribution and reproduction in any medium, provided the work is properly cited. This is an open access article licensed under the terms of the Creative Commons Attribution Non Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted, non commercial use, distribution and reproduction in any medium, provided the work is properly cited. The authors declare that there is no conflict of interests regarding the publication of this paper. Received: 27.03.2017. Revised 28.03.2017. Accepted: 29.03.2017. On the use of optoelectronic motion registration systems in biomechanical analysis of strike techniques Vitaliy Kashuba, Yurii Litvinenko, Ilia Vako National University of Ukraine on Physical Education and Sport Ukraine, Kyiv, Ukraine Blak Sea National University named after Petro Mohyla, Nikolaev, Ukraine Abstract Topicality. Sports and technical skills, as an element of a holistic process of sports training, occupy one of the priority places in the overall structure of sports skills. The study, formation, improvement and development of the most rational models of sport technique are closely related to the use of modern video recording systems. The task of the study is to analyse the knee strike technique, applied by the athletes of different qualifications with the help of "Qualisys" optoelectronic system. Results of the research. Analysis of highly skilled athletes’ competitive activities shows that a knee strike is mainly used in close combat. Much less often such a strike can be put in a jump from a long or average distance. In our work, we have analysed the technique of right knee strike, performed from the starting position characteristic of close combat. Conclusions. When studying the biokinematic structure of the knee strike technique, used by athletes of different qualification, differences in the dynamics of changes in the speed of the lower extremity joints on athlete’ impact side of were found, which indicates higher coordination of movements, performed by highly skilled athletes. Thus, regarding highly qualified athletes the peaks of the maximum speed of their ankle and knee joints coincide in time, contrary to the skilled athletes. The speed of the skilled athletes’ ankle and hip joints at certain times is higher than those of highly skilled. However, the maximum value of speed of the highly skilled athletes’ strike link, as a rule, is higher on average by 0.5 m ∙ s-1. The general patterns include the reduction of the resulting knee speed for athletes of different qualification at the time of strike performance in reference to the maximum values that precede the strike interaction. Key words: strike technique; optoelectronic systems; video analysis