Abstract

The aim of this study was to assess the level of basic physical ability for children characterized by dominance of certain components in somatotype. A type of the body build was established with Parnells method. The subjects were divided into three nonoverlapping subgroups with domination of fatness (F), linearity (L) and muscularity (M). The work capacity was estimated on the basis of maximal oxygen uptake (VO2max) and total work done by boys. Despite the similarity in basic morphological features between boys and girls of 7-12 years there was a strong sexual dimorphism in work capacity in favour of boys. The girls with M-domination were charcterized by the highest rate of the progression in work capacity (VO2max, total work). For boys this phenomenon was not so clear, it could be due to their relative retardation in development in comparison with girls. The somatotypes F and L showed irregular changes of the work capacity. A natural increase of the adaptation to exercise overlapped here with the relatively high participation of the inactive tissues of the body, namely fat and bones. Verf.-Referat