Effects of diversified motor activity on the level of motor fitness in children and youth from Cacow

Findings described in this paper are supported with results of continuos examinations of children and youth aged from 7 to 15 years. The investigations deal with basic somatic features and selected tests of motor abilities and motor co-ordination. The material is worked out in two fractions (high and low motor activity). Results of motor fitness tests are presented in standardized relative values ( advancement in somatic development is neglected). The regression in motor abilities in groups of youth with low motor activity is caused by environmental factors. Those factors have a greater influence on girls than on boys. The aforementioned facts allow us to formulate several postulates concerning theoretical and practical aspects of physical education.