Herrera-Valenzuela, Tomás, Pablo Valdés-Badilla, and Emerson Franchini. 2020. “High-Intensity Interval Training Recommendations for Combat Sports Athletes During the COVID-19 Pandemic”. Revista De Artes Marciales Asiáticas 15 (1):1-3. https://doi.org/10.18002/rama.v15i1.6230.