The best set of stomach workouts and exercise are sit-ups on parallel bars. If you haven't realized your dream of six pack abs even after 3-4 months of exercising, it is dead certain that you haven't used parallel bars to do sit-ups, period. I know you are wondering why this is not written about anywhere online. Simple sit-ups are practiced by anyone who is working out ab exercises either using sit-up bars or plainly lying flat on a floor mat, but I can challenge anyone, which other exercise for abdomen stresses the whole of muscle as the sit-ups on parallel bars do. The plain truth is there is no other ab exercise that comes anywhere near beating the efficiency of sit-ups on parallel bars.
