%0 Journal Article %T Means of developing strength and speed-strength abilities in middle-distance runners to improve the elements of "active running" %A Bashkina-Gabruskaya, A.V. %K athletics, middle distance running, active running, tempo-rhythmic structure, flight phases, step frequency, training %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