Leg presses are done in a seated position. Your legs repeatedly press against weights, which can be adjusted according to your fitness level. This targets your quads, glutes, hamstrings, hips, and calves. The seated position of leg presses helps keep your upper body and torso still.

What is the purpose of leg press?

The leg press machine allows you to get the benefits of a barbell squat for developing the quadriceps. Secondarily, it develops the gluteus maximus, hamstrings, and calves. By varying your foot position you can emphasize different muscles.

Does the leg press make your bum bigger?

Strength, Not Size

Your butt muscles, technically known as your gluteus maximus, contribute to the leg press exercise, but they aren't the target. Thus, while performing leg presses can strengthen your glutes, you're unlikely to build these muscles to the point that you notice a larger butt.