Relationship of sensorimotor responses with some components of junior taekwondo training
Authors:   Kharkiv State Academy of Physical Culture, Alekseev А. , Romanenko V. ,   Kharkiv State Academy of Physical Culture, Tropin Y. ,   Kharkiv State Academy of Physical Culture
Published: June 2022

Purpose: identify statistically significant relationships between sensorimotor responses and some components of junior taekwondo training. Material and methods. The research methods used in this study are: theoretical analysis and generalization of scientific and methodological literature; pedagogical observation; instrumental method; mathematical and statistical research methods. The study was attended by junior taekwondo athletes (n=10; 13,4±0,32 years; 2 Gup – 1 Dan), representatives of the Cherkasy City Council. Results: а set of special programs for tablet computers under the guidance of iOS was used to determine the level of sensorimotor reactions. The results of sensorimotor reactions of athletes were obtained, which were studied on the following tests: TestSTMemory (volume of perception and duration of the test); Reaction SM Dual (number of right and left hand clicks); Reaction RC (difference in the number of pressures under the influence of beating signals and without them right and left hand); Reaction RMO (response time to a moving object); Size test (reaction time to change the size of the object); TappingPro (number and duration of clicks during the test). To determine technical and tactical readiness, taekwondo athletes were asked to perform a Yop chagi kick and a technical and tactical connection (Dollyo chagi - Twid chagi). The biomechanics of the impact and the parameters of the technique were determined by video computer analysis (computer program «Bio Calculation»). Thus, for the kick of Yop chagi, its trajectory, speed, acceleration and phase relationship were determined. For the technical-tactical connection, the time characteristics of the individual phases are determined: the phase of impact formation (Dollyo chagi); impact phase (Dollyo chagi); rotation phase; stroke formation phase (Twid chagi); strike phase (Twid chagi). To determine the level of special physical fitness, Dollyo chagi was punched at maximum speed for 40 s on a punching bag. The use of a specialized program for tablet computers «Bio Calculation» allowed to determine the number of strokes and their duration in each 5-second period of the test, which provided information on the dynamics of changes in the parameters that were studied. Conclusions. A comparative analysis of the parameters that were studied showed that athletes who have more developed abilities to memorize short-term visual signals are able to perform a kick Yop chagi faster than others (r=0,72). It is noted that the accurate perception of the distance to the opponent allows you to perform attacking actions more confidently, which reduces the duration of both individual strikes and technical and tactical connection as a whole. Correlation analysis of test results to assess functional asymmetry and duration of impact when performing the test «Dollyo chagi for 40 c» showed that athletes with higher stress resistance are able to mobilize efforts and better perform the proposed tasks (r=0,63). The result of the correlation analysis of the reaction reaction time and the result in the test «Dollyo chagi for 40 c» confirms the relationship between technical and special physical fitness. Athletes who have a rational technique, namely the ability to redistribute the effort of the muscles involved in the impact, demonstrate greater speed and quantity during the test. Keywords: sensorimotor reactions, technical and tactical readiness, special physical qualities, correlation analysis, taekwondo.