TY JOUR TI THE FEATURES OF MUSCULAR AND PSYCHO-EMOTIONAL STATE OF TENNIS PLAYERS DEPENDING ON THE LEVEL OF THEIR SPORTS EFFICIENCY KW tennis players KW muscular abilities KW psycho-emotional state. JO Bulletin physiology and pathology of respiration AU Yurchenko, O.. AU Leifa, A.V. AU Voytus, L.. PY 2016 IS 1 PB Far Eastern Scientific Center of Physiology and Pathology of Respiration