Abstract
The results of a somatic check-up of the entire sample of 180 primary school lower grade pupils, 160 primary school higher grade pupils and 226 secondary school lower grade students in Split show that dismorphic changes of the thorax occur relatively seldom in children of this age (not over 20%). The relations between the groups of variables of some antropometric and somatic indicators and specific dismorphic changes of the thorax (the carinal thorax and the funnel-shaped thorax) have been established by the usual regression analyses. A significant relation between the groups of analyzed variables (the thorax depth, average thorax circumference and biacromial range) and the funnelshaped chest have been obtained, and an important connection between the groups of analyzed variables: body weight, minimum waist circumference, average thorax circumference and the thorax depth with the carinal chest (pectus carinatum). Taking into consideration life dynamics (the age and the level of education) one regularity can be recognized in the process of morphological transformation of the thorax posture, which should be familiar with and respected, because it can have a big diagnostic, prognostic and kinesitherapeutic importance.