Burnashev R. DEVELOPMENT OF A METHOD FOR OPTIMIZING STRIDE FREQUENCY AND QUANTITY TO IMPROVE THE PERFORMANCE OF SKILLED 400m AND 800m RUNNERS. mesmj [Internet]. 2024 Nov. 20 [cited 2025 Jan. 28];5(08):42-55. Available from: https://mentaljournal-jspu.uz/index.php/mesmj/article/view/673