00664naa#a2200181#i#4500001001600000005001700016011001400033100004100047102000700088200015900095210011000254215001000364608002700374675003900401700000600440700000600446856003000452EN\\bibl\12144720260507210737.4##a1994-4683##a20230531b2023####ek#y0engy0150####ca##aRU1#aCONTENT OF TRAINING LOADS AND THE DYNAMICS OF PHYSICAL FITNESS IN THE ANNUAL CYCLE OF 400 M RUNNERS AT THE STAGE OF SPORTS SPECIALIZATIONeJournal article1#aMoscowcNational State University of Physical Education, Sports and Health named after P.F. Lesgaftd2023##a5 с.##aJournal article2local##aБег. Например,. 796.422#1g #1g 4#auchzapiski.lesgaft.spb.ru