One of the keys to a six pack is to exercise regularly. If you only workout once a week you are not giving your body the right amount of exercise to get real results.  Is it possible to over exercise? Yes. Some people think that to get a six pack you need to workout out constantly.  Doing this may even be counterproductive especially if you are also trying to build ab muscles. There are products like the Contour Core Sculpting System which you should also avoid.  Products like this are a complete waste of your time and money so stay away.  Learn more about products like this and the number one online abs program when you visit the link above.