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Old 03-14-2010, 10:02 PM   #1 (permalink)
Sledouxx
FitDay Member
 
Join Date: Mar 2010
Posts: 1
Question How many calories do you burn doing crunches?

I wish this thing could measure how many crunches or sit ups I do as opposed to how long I'm doing them for. I don't know, it just seems like it won't measure calories burned accurately or something. Does anyone know for sure how accurate it is?
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