Zaitsev V.S. IMPACT OF REACTION TIME ON 50M FREESTYLE PERFORMANCE IN MALE SWIMMERS: A DIFFERENTIAL ANALYSIS ACROSS QUALIFICATION LEVELS. TPPC [Internet]. 2025 Sep. 28 [cited 2025 Dec. 5];(8):85-9. Available from: http://tpfk.ru/index.php/TPPC/article/view/1441