Professor Sergej M. Ostojic received his medical degree from the Faculty of Medicine, University of Belgrade, Serbia on September 1996. He then pursued his postgraduate training in exercise science & medicine and obtained PhD at the University of Belgrade in 2003. In 2002, he joined the faculty of the Institute of Sports Medicine at Sports Academy Belgrade. Currently he is the Director of Human Performance Laboratory at the Center of Health, Exercise and Sport Sciences, Belgrade and Professor at Faculty of Sport and Physical Education at the University of Novi Sad. His research is focused on physiological responses to maximal and submaximal exercise, and evaluation of the ergogenic properties of dietary agents. He is a member of American College of Sports Medicine, European Physical Conditioning Association and International Federation of Sports Medicine. He has a number of publications in different journals in medicine, physiology & sport science.