Comparison of somatic characteristics and motion prerequisites between children who perform organized physical activities, and children not engaged in sports

Low physical activity in children of pre-school and younger school age has been a multifaceted problem for several years, which is being addressed by a number of scientists, primarily doctors, educationalists, and psychologists. The purpose of our study is to compare somatic and motion prerequisites among physically active and physically inactive children from the first grades of primary schools in the Pilsen region. The research sample consisted of 753 pupils from the first grades of primary schools in the Pilsen region, of which 421 boys and 332 girls. Of a total number of pupils, 176 (23.4%) girls and 275 (36.5%) boys are engaged in any sporting activities. At the time of measurement, their average age was 6.87±0.59 years. To obtain somatic characteristics, body heights and weights of children were measured, and from the measured data, a body mass index (BMI) for the child category was calculated. To determine the level of motion prerequisites, we used the DMT 6-18 test battery, consisting of 8 tests. The tests are aimed at assessing the level of dynamic and explosive power, speed, co-ordination, balance, flexibility, and endurance. The results of our study highlight the fact that even in the age range of 6 to 7 years, there are significant differences between physically active and physically inactive children in the tests, which monitor motion prerequisites of children. Statistically significant differences were seen primarily in tests which monitor the level of fitness abilities, i.e. the components of the body health-oriented fitness