%0 Journal Article %T JUMPING EXERCISES EFFICIENCY AT YOUNG MIDDLE DISTANCES’ RUNNERS %A Kashenkov, Y.B. %A Odintsova, M.O. %A Starostin, S.D. %A Bekmansurov, R.K. %K young runners, middle-distance running, sports result, physical fitness, performance gains, training factor %J Scientific notes of P. F. Lesgaft University %D 2023 %N 0 %P 4 %I National State University of Physical Education, Sports and Health named after P.F. Lesgaft