TY JOUR TI Anticipation development in 11-12-year-old tennis players KW anticipation KW perception KW young tennis players aged 11-12 KW time of visual-motor reaction KW accuracy of responses JO Scientific notes of P. F. Lesgaft University AU Il'icheva, O.V. AU Sirakovskaya, Y.V. PY 2025 IS 0 PB National State University of Physical Education, Sports and Health named after P.F. Lesgaft