Stair climbing and vertical running? For you, for me and everyone!

By Marina Aagaard, MFE. Photo: Henrik Elstrup Stair climbing is an excellent workout. I knew that. Last week I found out that stair running, vertical running, is an extreme workout. The event was a cool running event, Zoo Tower Challenge, in Copenhagen, Denmark. As the event organizers put it: A race you won' forget right away! …