Luís B. Sardinha is Full Professor of Exercise Prescription and Functional Body Composition and Energy Regulation at the Faculty of Human Kinetics, University of Lisbon. He was trained in Exercise and Sports Science, earning a M. Sc. in Exercise Physiology from the University of Kansas, USA and a Ph.D. from the Faculty of Human Kinetics at the University of Lisbon, Portugal. In 1997 he did his post-doc at the Body Composition Laboratory, Department of Physiology, College of Medicine, University of Arizona, USA. He is the Director of the Exercise and Health Laboratory, Scientific Coordinator of the Interdisciplinary Centre for the Study of Human Performance (CIPER), Faculty of Human Kinetics, University of Lisbon, Research Group Funded by Portuguese Government, Science and Technology Foundation, and member of the Hoc Research Working Group on Body Composition, Health and Performance under the auspices of the International Olympic Committee Medical Commission. He has published over 200 peer-reviewed articles and has been investigator in some international research projects and PI in several FCT-funded projects. The focus of his research has been the development of methods of human body composition, and studying graded and dose response relationships between sedentary behavior, physical activity and fitness with physiological attributes across the life span and related mechanisms. Currently, he is involved in forward-translation research comprising web-based outreach programs to influence children’s fitness and health.