Exercises that increase the size of the buttocks include barbell squats, lunges and deadlifts. Barbell squats are one of the most effective exercises used to train the buttocks. Holding a bar across the shoulders adds resistance, and increasing the width of the feet places emphasis on the butt and hips.
Lunges are another effective exercise to train the glutes, which helps improve the size of the buttocks. There are different types of lunges, including stationary, walking, alternating and side lunges. Deadlifts are an ideal exercise for the hamstrings, lower back and the buttocks. When performing deadlifts, it is important to stand with the feet hip-width apart while holding weights in front of the thighs.