Karen Koster on a high as she completes first Hyrox with sister-in-law

Karen Koster has said she 'may never shut up' after she completed her first-ever Hyrox this weekend. Hyrox is a fitness phenomenon that has been taking the world by storm, comprising an 8km run along with eight workout stations. Today's top videos The form of exercise has become immensely popular in the last year or […]