TY JOUR TI SPEED OF SOCCER PLAYERS' MOVEMENT DEPENDING ON THE TYPE OF SURFACE KW student's sport KW soccer KW starting speed KW distance speed KW sandy surface KW natural turf KW artificial turf KW timing system smart speed JO Scientific notes of P. F. Lesgaft University AU Shishkov, I.Y. AU Ivanov, N.V. AU Nuzhdin, V.V. PY 2023 IS 0 PB National State University of Physical Education, Sports and Health named after P.F. Lesgaft