%0 Journal Article %T COMPARATIVE ANALYSIS OF CONCENTRATION INDICES AND PHYSICAL CHARACTERISTICS DURING THE USE OFFUNCTIONAL DRINK ENRICHED WITH SUCCINIC ACID %A Kalmanovich, S.A. %A Snimshchikova, O.A. %A Ganizhev, R.D. %A Kaysheva, A.I. %K basketball, succinic acid, student-athletes, formulation, concentration, physical performance, mental load, standards, logic testing, training %J Scientific notes of P. F. Lesgaft University %D 2023 %N 0 %P 4 %I National State University of Physical Education, Sports and Health named after P.F. Lesgaft