Guifang Liu, and Haoyuan Li. “High-Intensity Interval Training (HIIT): Impacts on Cardiovascular Fitness and Muscle Development”. Revista de Psicología del Deporte (Journal of Sport Psychology) 33, no. 2 (July 2, 2024): 210–219. Accessed November 27, 2024. https://rpd-online.com/index.php/rpd/article/view/1714.