Bench Sit up

The Bench Sit up is the perfect device if you want to target you abdominal muscle. This versatile fitness equipment is great for other abdominal workouts too! You can even do Russian twists on it. Basic Ab Crunch – Place your leg under the support beam and lie on your back. Prop your knees up and place your hands behind your head. Now lift your body waist up without using the support of your hands. Doing this repeatedly will work your abdomen.