Purpose: to experimentally determine the correlational relationships between the physical and technical preparation of taekwondo players 12–14 years old. Material and methods. During the work, the following research methods were used: theoretical analysis and generalization of scientific and methodological literature and the Internet, pedagogical observation, pedagogical testing, pedagogical research, methods of mathematical statistics. 30 athletes specializing in taekwondo, age 12–14 years old, athlete qualification 1–2 grade, took part in the study. Results: at the beginning of the stage of basic training, statistically significant correlations were found between: speed-power index and the frequency of execution of side kicks to the torso after 10 seconds with the left leg r=0,50; a swing with the left leg forward in 15 s has a high degree of correlation with the frequency of lateral kicks to the torso in 10 s alternately with both legs r=0,54, the frequency of lateral kicks to the torso in 10 s with the left leg – r = 0,63 and the right – r=0,50 and the inverse relationship with a side impact with deployment in opposite directions in 15 seconds to the upper level – r=-0,53; squat on one leg in 30 s on the left leg – from fencing in 10 s to the upper level with the left leg r=0,62 and right leg with a side kick with a 360° rotation in 15 s with the right leg r=0,63; indicators of longitudinal and transverse splits have inverse relationships with fencing in 10 seconds to the upper level with the left leg – r=-0,67, r=-0,56, respectively. Correlation analysis of relationships of the level of manifestation of indicators of special physical and technical preparation at the end and at the beginning of the stage of basic training is marked by an increase in the number of high degrees of correlation relationships from 9 to 21. It was found that the speed-strength index has the largest number of high relationships – 6 (r=0,50–0,72), this is due to the fact that at the end of the stage of basic training, the improvement of technical fitness indicators occurs due to the improvement of special physical fitness, in particular, due to the manifestation of speed and strength abilities and intermuscular coordination, which is reflected in the ability of athletes to control their movements. Conclusions. The research established that at the beginning of the stage of basic training and technique formation, the manifestation of flexibility affects 10 medium-level correlations (r=0,31–0,46) and 2 high inverse correlations (r=-0,67, -0,56), and at the end of the stage, the manifestation of speed-power abilities and intermuscular coordination is of crucial importance. Taekwondo athletes require training that improves aerobic capacity, resulting in the development of oxygen systems in order to perform as efficiently as possible during a bout consisting of 3 rounds of 2 minutes with only 1 minute of rest for partial recovery, energy resources. However, work under significant hypoxia, that is, in anaerobic conditions, also plays a large role in a sports match.

Purpose: to develop regression models of special physical fitness of taekwondo players aged 12-14 years. Material and methods. The study was conducted at the public organization «Taekwondo Federation (WTF) of Ukraine». It was attended by 30 athletes specializing in taekwondo, aged 12-14 years, qualification 1-2 adult category. The following methods were used in the research: theoretical analysis and generalization of scientific and methodical literature and the Internet, pedagogical testing, methods of mathematical statistics. Results: it was established that indicators of special physical fitness depend on one, two, three and even four statistically significant independent variables (indicators of general physical fitness) within p<0,05-0,01. From regression models it is seen that the speed and power index, a swing of the left foot forward for 15 s and «Pistol» on the left foot for 30 s have statistically significant influence on the index of frequency of performance of lateral kicks in a trunk for 10 s alternately with both feet. It is established that the index of a side kick with a turn in opposite directions for 15 s in the upper level depends on a longitudinal twine on the left and right legs. A side kick with a 360° turn in 15 s with the left and right legs depends on a swing of the left leg forward in 15 s and the index of the right leg is also influenced by the speed and power index. The index of the reverse lateral kick for 15 s with the right foot statistically depends on the longitudinal twine on the left foot. The maximum number of strokes of nerio chagi alternately for 15 s depends on four indicators of special physical fitness: longitudinal twines on the right and left legs, a swing of the left leg for 15 s and a «pistol» on the right leg for 30 s. Conclusions. In modern conditions of training of sportsmen at the stages of long-term preparation for forecasting of success, experts in the field of physical culture and sport widely use the construction of regression models of preparedness. For the rapid construction of regression models of any order, it is necessary to use linear regression models with one independent variable. In order to detail the forecasting process, it is necessary to apply multiple analysis with a stepwise method that will allow to include in the regression equation the independent variables that have the highest coefficients of partial correlation with the dependent variable. The researches have established that in taekwondo fighters of 12-14 years old a statistically significant indicator of physical fitness which influences the manifestation of special is a longitudinal splits on the left and right legs, but the fascination with the development of flexibility of sportsmen can lead to the deterioration of results of speed and power orientation.