Exercise balls are one of the most effective exercises for working those abdominal muscles. To do the exercise correctly, lie on a mat and press your lower back flat. Put your hands beside your head. Tighten your abdominal muscles and raise your trunk off the ball to about a 30-degree angle. Return to the original position with your back firmly against the padding. You should have the Roman Chair set high enough that your legs dangle straight down when you are in position. Then slowly bring your knees toward your chest until they are at about a 45-degree angle. Bring your right elbow in contact with your left knee. Then alternate with the opposite knee and elbow and repeat. You should feel it in your sides and abs. As a matter of fact... beginner exercisers don't use 2/3 of the home exercise equipment they buy. Maybe you already have a collection of different exercise devices... but you are convinced that with this new contraption you will definitely reach your fitness goals. Once you have assessed your needs and situation, you can evaluate the different types of