Why would you want to. I dont believe that any bodypart could handle being hit every training day, but the bottom line is that it's not necessary. A while back I took the advice of a nationally ranked powerlifter and started training mine with weight, same as any other body part. For the past few years it is the only routine I have followed, and at most I do it 1x per week and it only takes a few minutes. And as a result I have ab muscles that bulge so noticeably that I can still see them when over 10% bodyfat. When ripped, they look sick, all on 1x per week. It also boosted my squats and deads as well