Every Hyrox race brings its own set of challenges, but for me – as a 5ft 2in petite <60kg woman (I don't weigh myself, but I'd say I'm around 55kg), the sled stations have always been the toughest.
One of the major killers of muscle gains is overworking a particular muscle group and not allowing it enough time to effectively recover. The best push-pull-leg and upper/lower body workout splits ...