TY JOUR TI Determination of ankle joint mobility as a means of selection and assessment of athlete potential in cross-country skiing KW cross-country skiing KW joint mobility KW ankle joint KW testing in sports KW sports selection KW sports orientation JO Scientific notes of P. F. Lesgaft University AU Terehin, V.S. AU Kochergina, A.A. PY 2025 IS 0 PB National State University of Physical Education, Sports and Health named after P.F. Lesgaft