The following Wednesday Workout was written by Dr. Øyvind B. Sandbakk, the managing director at the Centre for Elite Sports Research at the Norwegian University of Science and Technology (NTNU) in Trondheim, Norway. (He’ll also be featured in an upcoming Nordic Nation podcast.) Beyond his work at NTNU, Sandbakk is the head of research and development at the Norwegian Olympic Sports Center (Olympiatoppen). At 37, he has established himself as one of the premier researchers studying...