Sit on the floor with your upper back against a bench and roll a barbell over your legs so it rests on your hips. With feet flat and about shoulder-width apart, brace your core and drive your hips upward by pressing through your heels. Lift until your body forms a straight line from shoulders to knees, squeeze your glutes at the top, then lower back down with control and repeat.
Log your barbell hip thrust sets in 1RM.fit and watch your estimated 1RM update automatically as you get stronger.