%0 Journal Article %T LOAD INTENSITY OF PHYSICAL EXERCISES DURING TENNIS CLASSES WITH 4-5-YEAR-OLD CHILDREN %A Dmitrenko, L.A. %A Datsenko, S.S. %A Kostyukov, V.V. %A Datsenko, A.A. %A Babak, E.Y. %K tennis, training process, preschool children, heart rate indicators, intensity of physical exercises %J Scientific notes of P. F. Lesgaft University %D 2023 %N 0 %P 6 %I National State University of Physical Education, Sports and Health named after P.F. Lesgaft