TY JOUR TI FEATURES OF PHYSIOLOGICAL REACTIVITY OF THE RESPIRATORY SYSTEM BY HIGHLY QUALIFIED MALE ATHLETES IN THE AGE RANGE 17–46 YEARS KW reactivity KW respiratory system KW highly skilled athletes KW a wide age range JO Scientific Notes of V.I. Vernadsky Crimean Federal University. Biology. Chemistry AU Timofeeva, S.N. AU Pogodina, S.V. AU Timofeev, V.D. PY 2025 IS 11 PB V.I. Vernadsky Crimean Federal University