Working out in any form is never useless because you will be
burning calories; however, the amount of calories you are burning may be the
issue. Another problem is spot-reducing, which is not realistic. The best way
to burn calories and get rid of belly fat is cardio. You will be much more
successful increasing the length and intensity of your cardio workout and
changing your diet. Once you start burning the fat away, you can focus on core
exercises that will really make those abdominal muscles pop!