In Strength Training: Need a simple ab workout that will kick my ass [Archive

Need a simple ab workout that will kick my ass [Archive] - BodyWeightCulture.com Hey what's up guys I've been doing regular sit-ups/crunches for the longest time now, and to be honest, they don't kick my ass anymore. Now, I'm a big fan of simple, yet effective workouts, and I really need a good ab workout right about now. Any suggestions will be appreciated. if you do sit-ups with your feet anchor ...Strength Training