TY JOUR TI Differences in motor fitness and anaerobic physical performance of young short track skaters aged 12-13 years KW speed skating KW short track KW motor fitness KW physical performance KW age characteristics JO Scientific notes of P. F. Lesgaft University AU Bruk, T.M. AU Voskresenskiy, M.V. AU Litvin, F.B. AU Terehov, P.A. AU Kot, E.Y. PY 2025 IS 0 PB National State University of Physical Education, Sports and Health named after P.F. Lesgaft