Step-ups have been around for a while and are featured heavily in group classes like Les Mills and CrossFit. That’s because the beginner-friendly resistance exercise works your legs and butt hard while scaling to any fitness ability, so I decided to do 560 of them in seven days.
The step-up is a leg-torching exercise that targets the muscles in your quadriceps, hamstrings, core, and gluteal muscles. You could use step-ups in an aerobic workout with a lower height and faster speed, or a strength program using a heavy weight and higher step.
