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Experiments on rat pups showed that regular exercise for 4 weeks starting from day 14 after birth considerably increased stroke volume. Similar dynamics of stroke volume was observed in subsequent period of restraint locomotion. Experimental hypokinesia starting from day 14 after birth significantly limited the age-dependent increase in SV. However,… (More)
Experiments performed on random-bred rat pups showed that muscle training during earlier terms of postnatal ontogeny produce more pronounced changes in the pumping function of the heart.