Many people have done hundreds, if not thousands of crunches and sit ups and still have not seen the kind of results they are looking, as hard, sexy, strong abs seem to be quite elusive. There are lots of reasons for this, but one of the main ones is that people often do ab exercises incorrectly, and they only work a small portion of their core when a full core strengthening workout is needed. Working all the ab muscles usually requires doing a wider range of exerci ... Tags:abtronic, ab-tronic, ab tronic, ab tronic belt, ab tronic abs