Discriminant analysis: motor skills in the structure of motor readiness of 8-year-old boys practicing karate

Purpose of the study. To determine the contribution of motor skills to the structure of motor readiness of 8-year-old boys who practice karate. Materials and methods. The study involved 32 8-year-old boys who practice karate. Children and their parents were informed about all the features of the study and gave consent to participate in the experiment. The following methods were used in the study: study and analysis of scientific and methodological literature, pedagogical observation, timing of educational tasks, pedagogical experiment, methods of mathematical statistics, methods of mathematical planning of experiments. Results. The results of discriminant analysis indicate that the obtained canonical functions explain 100% of the variation in results and are informative for classifying the level of motor fitness of 8-year-old boys. The first function explains 91,9% of the variation in results (r1 = 0,996), the second – 5,9% of the variation in results (r2 = 0,948). Verification of canonical functions indicates that the first and second functions are statistically significant (λ1 = 0,001, p = 0,001; λ2 = 0,024, p = 0,043). As a result of the analysis, a significant influence of orthogonal variants of the standard-intermittent exercise on the motor readiness of 8-year-old boys was revealed. Thus, statistically significant differences in test results between groups (A1B1, A2B1, A1B2, A2B2) are observed in the technical level of performing exercises 1-6 series of training tasks (p = 0.001), as well as in the results of running 300 meters (p = 0, 01). The discrepancies in the results of other tests are not statistically significant. Conclusions. The canonical discriminant function can be used to classify the motor readiness of 8-year-old schoolchildren depending on the influence of orthogonal variants of the standard-intermittent exercise. As a result of discriminant analysis, indicators were identified that were of the greatest importance when assessing the motor readiness of boys 8 years old who have been practicing karate. These include the level of training in a series of educational tasks, indicators of physical development and the level of development of motor abilities. The formation of motor skills and the development of motor abilities is considered as a holistic process. The effectiveness of training according to an algorithmic type prescription program depends on the mode of performing a standard-intermittent exercise.