I am 13 and I want to know how many crunches or sit up I should do a day. Any s!


Question:

I am 13 and I want to know how many crunches or sit up I should do a day. Any suggestions?


Answers:

ummm dont do sit ups cauze they hurt ur back do crunhes, like 100 or more a day, i normally do 500 a day!

good luck


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