A leg press machine allows users to train the quadriceps, glutes, and hamstrings by pushing a weighted foot platform away from the body. Adjusting the seat angle and foot placement alters the emphasis among these muscle groups. The supported back position reduces spinal loading, making it suitable for heavy lower-body training even for those with lower-back sensitivities. It is an excellent machine for building leg size and strength without the balance demands of squats. Users can perform high-repetition pump sets or heavy low-repetition strength sets depending on their goals.