Nagai N, Iso S. Effect of interval training on performance in long-distance runners affiliated with Japanese companies. sci. j. sport perform. [Internet]. 2025 Mar. 25 [cited 2025 Apr. 3];4(2):202-11. Available from: https://sjsp.aearedo.es/index.php/sjsp/article/view/interval-training-and-performance-in-long-distance-runners