When it comes to preparing for the great outdoors, indoors, few movements are as suited to building mountain legs as the humble box step-up. The CrossFit Hero WOD ‘Chad’, which challenges you to do ...

It's one of the most simple moves but, do it right, and you're in for a whole host of benefits. It's the humble step-up exercise, of course! Or, if you're plumping for the weighted version, a dumbbell ...