Dumbbell Straight Arm Twisting Sit-Up

Instructions

1. Lie on your back with knees bent, feet flat; hold a dumbbell with both hands and extend arms straight toward the ceiling.
2. Perform a sit-up while simultaneously rotating your torso to one side, keeping arms locked out.
3. Return to center as you lower back down with control.
4. Alternate the rotation side each rep.
5. Repeat for the desired reps.