Polevoy, Georgiy, Héctor Fuentes-Barría, and Raúl Aguilera-Eguía. “Development of Physical Fitness Through Simulation Exercises for Ski Racers Aged 13-14. Non-Randomized Quasi-Experimental Study”. Revista de Investigación e Innovación en Ciencias de la Salud (December 14, 2023): In press. Accessed May 12, 2024. https://riics.info/index.php/RCMC/article/view/267.