Lie on your back with knees bent and feet flat on the floor, holding a dumbbell in each hand at shoulder level with a close grip. Engage your core and begin a sit-up by lifting your torso toward your knees while simultaneously pressing the dumbbells overhead. At the top, your arms should be fully extended. Slowly lower your torso back down while bringing the dumbbells back to shoulder height. Keep the movement controlled and avoid using momentum.
Log your dumbbell close grip shoulder press sit up sets in 1RM.fit and watch your estimated 1RM update automatically as you get stronger.