TY JOUR TI Functional, biological and biomechanical maturity as safety criteria for children’s admission to sport training: a systematic analysis and practical recommendations KW youth sports KW biological maturity KW peak growth velocity KW bio-banding KW safety of children's sports KW sports selection KW injury prevention JO Scientific notes of P. F. Lesgaft University AU Novikova, I.I. AU Savchenko, O.A. AU Kulikova, O.M. AU Zabarovsky, S.A. PY 2026 IS 0 PB National State University of Physical Education, Sports and Health named after P.F. Lesgaft