Abstract
Purpose: to reveal the styles of fighting veteran boxers on the basis of a multivariate analysis of psychophysiological and biomechanical indicators.
 Material and methods. The study involved 42 qualified veteran boxers (age 45-50 years). As research methods, we used a biomechanical analysis of the indicators of the speed of movement of various points and the values of the angles in the joints when performing a direct blow by boxers. The psychophysiological method was used to determine the time of a simple and complex reaction under standard conditions and in various testing modes. We used the method of cluster analysis to distribute athletes into groups using the SPSS - 17.0 program. Within the groups, the athletes are as similar as possible to each other in terms of the analyzed indicators, and between the groups they differ as much as possible. The analysis of the groups of athletes obtained with the help of cluster analysis made it possible to identify athletes with the following styles of fighting: tempo, game, power.
 Results. Cluster analysis of psychophysiological and biomehanical testing showed the presence of 3 groups of athletes. The clusters were named as follows: Cluster 1 - "Speed and coordination endurance", corresponds to the boxers of the pace of the fight; Cluster 2 - "Speed", corresponds to the boxers of the game style of fighting; Cluster 3 - "Strength and speed", corresponds to the boxers of the pace of the fight. Biomechanical features of boxers of different styles of fighting are reflected in the trajectories of the points of the fist, elbow, knee.
 Conclusions. The results of this study should be used when planning the individual training of athletes in boxing and to determine the optimal style of competitive competition for qualified veteran boxers. The proposed methods of psychophysiological and biomechanical testing to determine the individual characteristics of boxers are an effective, fairly accessible and convenient tool for revealing the predisposition of boxers to a certain style of fighting.
Highlights
At the present stage of boxing development, the style of fighting is a characteristic feature of every professional boxer [1, 2, 3]
To determine the optimal options for combining qualified veteran boxers into groups based on the principle of different styles of fighting, a cluster analysis of testing indicators was carried out
We found that in the athletes of the first cluster, the severity of the factor "Speed and coordination endurance" and a small level of severity of the factor "Speed" prevail
Summary
At the present stage of boxing development, the style of fighting is a characteristic feature of every professional boxer [1, 2, 3]. There are boxers who are very forceful in the fight They are distinguished by the great force of the blow, the desire for power victory of the enemy. Constantly varying their actions, using a lot of feints, strikes in the most unexpected moments. These are boxers of game style - Roy Jones, Mohammed Ali, Floyd Mayweather [2, 3, 4]. There are boxers who "exhaust" the opponent at a high pace for many rounds, and win when the opponent is no longer able to withstand the imposed pace. The most characteristic features of the movements of athletes remain unchanged, which gives reason to talk about the predominant individual style of fighting
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