TY  JOUR
TI  PREPARATION OF SCHOOLCHILDREN FOR MIDDLE DISTANCE RUN ON THE BASIS OF RUNNING STEP PARAMETERS OPTIMIZATION
KW  running technique
KW  kinematic characteristics
KW  middle-distance running
KW  running step parameters
KW  schoolchildren
KW  age characteristics
JO  Scientific notes of P. F. Lesgaft University
AU  Alenurov, E.A.
AU  Rysakova, O.G.
AU  Konysheva, E.V.
AU  Ivanov, D.A.
PY  2026
IS  0
PB  National State University of Physical Education, Sports and Health named after P.F. Lesgaft