[Body constitution of growing inbred animals under hypo-, normo- and hyperkinetic conditions]

The work was carried out in inbred mice C57BL/6, CBA, CC57Br/M strains, interstrain hybrids of the first generation FF1 and in rats of August and Wistar strains. Only one-month-old male animals, which were kept for two months under the conditions of hypo-, normo- and hyperkinesia were used in the study. Statistically significant relation between underloading, overloading and habitus changes was demonstrated. It was stated that habitus changes under the conditions of hypo-, normo- and hyperkinesia were genetically determined. Hereditary predisposition of the reactionary norm and the phenomenon of heterosis manifest themselves under different motor regimens.