Want to work your legs and butt but don't have any weights? Find a step, box, bench, or sturdy chair and learn how to do a step-up. The step-up exercise combines the mechanics of a lunge with upward ...

Picture this: a single move that not only strengthens your key leg muscles (quads, hamstrings, and glutes) but also improves your balance, coordination, and yes, gets your heart pumping like a cardio ...

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 ...