Dumbbell Straight Arm Crunch

Instructions

1. Lie on your back with knees bent, feet flat; hold a dumbbell with both hands and extend arms straight up toward the ceiling.
2. Keep arms locked out and crunch your upper back off the floor by contracting your abs.
3. Pause briefly at the top with shoulders clear of the floor.
4. Slowly lower back down without fully relaxing tension in the abs.
5. Repeat for the desired reps.