Quote:
Originally Posted by lol_lol
did 500 crunchs wooh and half an hour of dancing.
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You've been posting about doing 500 crunches for a long time now. Just wondering if you change them up, I mean the way they're done and all, intensity wise, etc? Because a single exercise becomes ineffective after 3-5 weeks of being performed without any change in routine. The muscle group being targeted begins to think of the exercise as a normal daily occurrence with no merit and develops resistance to it.