Nicolás Cifuentes Caballero | 🔥ENTRENAMIENTO HIIT🔥 . Aquí les HIIT. Entrenamiento de Intervalos de Alta Intensidad, Más Libros Tu... Hiit. Entrenamiento De Intervalos De Alta Intensidad | Penguin Libros Explore the physiology of all the essential HIIT exercises, spins, and sprints, to master each movement with confidence and control. Recent scientific research shows that HIIT is the most efficient form of exercise for raising fitness levels, increasing cardiopulmonary health, and losing weight