TY JOUR TI RUNNING IN THE SNOW AS AN EFFECTIVE MEANS OF INCREASING RESULTS IN MIDDLE DISTANCE RUN FOR STUDENTS KW snow running KW middle distance running KW speed endurance KW athletics arena KW students JO Scientific notes of P. F. Lesgaft University AU , .. PY 2023 IS 0 PB National State University of Physical Education, Sports and Health named after P.F. Lesgaft