%0 Journal Article
%T Improvement of breaststroke leg technique based on the development of key areas of flexibility of swimmers 9-11 years old
%A Maretsky, S.Y.
%K swimming, breaststroke swimming technique, children's sports, flexibility, range of motion
%J Scientific notes of P. F. Lesgaft University
%D 2025
%N 0
%P 3
%I National State University of Physical Education, Sports and Health named after P.F. Lesgaft