Want to try another abs workout? This one helps increase the tension of a regular sit-up by adding in a dumbbell. How do you do it? Lie back with your butt and feet on the floor, and holding a dumbbell over your head. I used an 8lb dumbbell. Open your feet wide. Slowly use your core to lift your upper body all the way up until the dumbbell is on the floor between your feet. Then slowly lower back down using your core strength to help you. Repeat for 3 sets of 20 reps.
Here is a video demo:
Cheers Eights & Weights!