
The kettlebell step up is a variation of the step up and an exercise used to strengthen the muscle of the leg. In particular, kettlebell step ups focus on building the quads, but also indirectly target the hamstrings, glutes, calves, and core.
Step up variations are excellent for beginners and are a good starting point for those looking to build single leg strength.
One should master the step up prior to moving on to more advanced one leg exercises such as lunge variations, split squat variations, and/or the pistol squat.