Dr. Konstantinos-Georgios Papaioannou is an exercise physiologist and sports scientist. He obtained his Ph.D. from Örebro University in Sweden and his M.Sc. from the University of Jyväskylä in Finland. He has been honored with the title of Exercise Physiologist by the Greek Society of Biochemistry and Physiology of Exercise. For his doctoral studies, he received a scholarship funded by the European Commission through the Horizon 2020 research and innovation programme, under the Marie Skłodowska-Curie Actions. His publications have been presented in reputable scientific journals, including the Journal of Cachexia, Sarcopenia and Muscle, Nutrients, Frontiers in Physiology, The Journal of Physiology, Molecular and Cellular Endocrinology, and the Journal of Proteome Research. Additionally, he has presented parts of his work at international conferences, contributing to the advancement of knowledge in the fields of exercise physiology, exercise biochemistry, nutrition, and sports training.