Research of Reliability and Informativeness of Indicators of Muscular Fitness of Karate Boys Aged 8 Years

The aim of the research is to develop a program for testing the strength fitness of boys aged 8 years at the level of orange belt (10, 9 kyu) with the use of informative tests that are available for application in conditions of general education school. Materials and methods. The study involved 20 boys aged 8 years. Informed consent for children’s participation in the experiment was obtained from their parents. The following research methods were applied to solve the set tasks: analysis of scientific and methodical literature, pedagogical testing of strength abilities, and methods of mathematical statistics for processing research results. Results. The analysis of correlation dependence between test tasks that characterize the display of different types of force generally shows a large and numerous interrelation of the average and high level of significance between all tests (ρxy = 0,508 - 0,879 at p<0,05; p<0,01. Processing of retest data showed the stability of the battery of tests and sufficient retest reliability for most test scores (rtt ranged from 0.818 to 0.984, p<0.001). Conclusions. The selected battery of tests is accessible, informative, and reliable. It will allow us to solve the following pedagogical tasks more effectively: to control the efficiency and effectiveness of physical training as an element of the pedagogical process of formation of motor skills and development of physical qualities, to maintain and strengthen health, to maintain a productive level of general working capacity, and to increase body resistance to action of unfavorable factors of the present.