Sit on a lever crunch machine with your back against the pad and feet secured under the foot support. Grasp the handles or pads near your shoulders. Engage your core and curl your torso forward by contracting your abdominal muscles, bringing your chest toward your hips. Pause briefly at the peak of the contraction, then slowly return to the starting position with control. Focus on maintaining tension in your abs throughout the movement without using momentum.
Log your lever total abdominal crunch sets in 1RM.fit and watch your estimated 1RM update automatically as you get stronger.