TY JOUR TI ORGANIZATIONAL AND PEDAGOGICAL CONDITIONS NECESSARY FOR THE USE OF EXERCISES IN PAIRS WITH ADDITIONAL WEIGHTS IN THE PROCESS OF SPEED AND STRENGTH TRAINING OF YOUNG BASKETBALL PLAYERS AGED 14-15 YEARS KW organizational and pedagogical conditions KW young basketball players KW speed and strength training (ssp) KW exercises in pairs with additional weights JO Scientific notes of P. F. Lesgaft University AU Gutovskiy, R.V. AU Bolotin, A.E. AU Semenov, S.A. AU Gallyamova, O.N. PY 2023 IS 0 PB National State University of Physical Education, Sports and Health named after P.F. Lesgaft