Work your abs hard and fast. Rest only for a few seconds or take no rest at all. By working your abs in supersets or giant sets you cause an intense burn which helps burn off the fat while developing your abs. Try out our ab circuit 4 times a week this week and let us know what you think. Perform each exercise for 16-20 reps for 2 sets at the beginning and end of your workout. Focus on proper form and full abdominal contraction.