Lie on your back with knees bent and feet flat. Extend one leg straight out while keeping the other foot on the floor. Engage your glutes and core to lift your hips toward the ceiling, forming a straight line from shoulders to knee. Hold briefly at the top, then lower with control and repeat before switching legs.
Log your single leg bridge with outstretched leg left sets in 1RM.fit and watch your estimated 1RM update automatically as you get stronger.