When toning and shaping your abs and glutes??

Ok, I’ve been doing ab and glutes (butt) exercises using my ab ball.
I understand that with strength training you should give your muscles a rest every other day so they can actually grow.
However, I’ve been told that I can work out my abs everyday because ab muscles are used all the time and can withstand stringent exercise. Does the same apply to the glutes? Can I work out my butt everyday, or should I jsut do it every other day? PS: I’m not using weights for my glutes, I just do squats and lunges without weights and use my ball for resistance and structure.
Thanks.

I’ve read many books about this matter and have gone through extensive personal training. Whom ever told you that you can work your abs everyday is wrong. You can work any muscle any day but the reason for the break is, like you said, give your muscles a chance to repair the microscopic tears you produced from working out. Taking a day off gives you better results.
The evidence of, "ab muscles are used all the time" is rather ignorant because you use every muscle all the time. You use your biceps every time you move your arm and your triceps to counter that movement. You use you calf, thigh, and buttox everytime you walk. I don’t mean to rain on your parade but that is a faulty theory. To achieve the best looking results on your body, you need to do the muscle building excersises 4 days a week and cardio fat burning 3 days a week to burn of the fat over the muscles. Good luck!