00638naa#a2200181#i#450# EN\\bibl\124226 20260708023555.3 1994-4683 20260707b2026####ek#y0engy0150####ca RU Maximum stroke volume of the heart in young athletes Journal article Moscow National State University of Physical Education, Sports and Health named after P.F. Lesgaft 2026 7 с. Journal article local Троеборье. 796.093.613 Sharovarova Marina Aleksandrovna Sosnina Svetlana Aleksandrovna uchzapiski.lesgaft.spb.ru