Box Step-up

The box step-up is a lower body exercise that primarily targets the quads, glutes, and hamstrings. It involves stepping up onto a box or bench with one foot, then stepping back down and repeating with the other foot. The height of the box or bench can be adjusted to increase or decrease the difficulty of the exercise.
In CrossFit, the box step-up is often used as part of a warm-up or as an accessory exercise to strengthen the lower body. It can also be incorporated into high-intensity workouts that include other bodyweight exercises or weightlifting movements. For example, it might be included in a workout that also includes squats, lunges, and deadlifts. The box step-up can be modified to suit different fitness levels by adjusting the height of the box or bench, or by adding weight using dumbbells or a barbell. It can also be combined with other exercises to create more challenging variations, such as the box jump or the box jump-over.