Julio Calleja-González (Scientific Research) – Ph.D., is a chair professor in sports training at university of the Basque Country (Spain). As an international lecturer in more than 30 countries, he is one of the most recognized specialists in sports recovery. Currently, he works for the Spanish Olympic Committee and is also the personal performance scientist of Serge Ibaka (NBA Champion, 2019). Julio wrote more than 200 scientific articles, 54 book chapters, and 7 books about training methods, recoveries, tapering, testing, training load control, and overtraining. He is a member of the European College of Sports Sciences (ECSS), and founder/member of the Executive Board of the European Physical Conditioning Association (EPCA).