The glutes are the largest and most powerful muscle in the human body.  Glute training can go beyond squats and lunges.  Two examples (hip thrust variations) using body weight, show how to work glutes and improve the performance of the back side.  Use benches or steps to increase range of motion. Barbell or dumbbells can be placed on upper thigh to add resistance. Powerful glutes increase explosion, speed, and bring the upper and lower body into balance.