In Ab Exercise: Is direct ab work necessary to build your abs? [Archive

Is direct ab work necessary to build your abs? [Archive] - Bodybuilding.com Forums Some bro's have told me you get enough stimulation through heavy compound's, is this true? Are all those leg lifts and weighted crunches just labor in vain? Some bro's have told me you get enough stimulation through heavy compound's, is this true? Are all those leg lifts and weighted crunches just labor in vain? If ...Ab Exercise