TY  JOUR
TI  Development of speed-strength qualities in schoolchildren in athletics classes under the program of additional education
KW  speed-strength qualities
KW  additional education
KW  general educational development programs
KW  a set of exercises
JO  Scientific notes of P. F. Lesgaft University
AU  Prohorenko, A.A.
AU  Antonov, A.V.
PY  2025
IS  0
PB  National State University of Physical Education, Sports and Health named after P.F. Lesgaft