DAREBEE Workout: What it Works
There are four main muscle groups that make up the ab wall in its totality and Abs Express is designed to help you test each one of them for better, faster results. When it comes to building quality abs there really is no shortcut. This set of exercises will help you get there, all you have to do is put in the time and do the work.
Extra Credit: Keep your head off the floor throughout the workout. 

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