António Ascensão is an Assistant Professor at the Department of Sports Biology at the Faculty of Sport (FADEUP) of the University of Porto since 2005. Senior researcher since 2005 as well at the Research Centre in Physical Activity, Health and Leisure (CIAFEL; I & D) hosted at FADEUP. Research interests lie in the broad areas of Exercise Physiology and Biochemistry. In particular, basic research interests include the study of mitochondrial (dys)function in both health and diseased conditions. Also, the cross tolerance effect of exercise against stress stimuli-induced mitochondrionopathies and hypoxia induced mitochondrial (dys)function are of special interest. Applied research on Exercise Physiology includes the study of the impact of exercise-induced neuromuscular fatigue on performance of humans. Graduation in Sports Sciences obtained in 1996, the MSc degree in 1999 and the PhD in 2005 at the Faculty of Sport of the University of Porto. Presently post-doctoral researcher the Mitochondrial Toxicology group of the Centre for Neurosciences and Cell Biology (CNC) at Coimbra. Since 2003, António Ascensão has made research contributions to the general fields of Exercise Physiology and Biochemistry through the publication of original papers and reviews in international peer-review journals as well as book chapters. He has contributed as reviewer of manuscripts for international peer-review journals as well.