what is?

iVillage Member
Registered: 11-13-2004
what is?
1
Mon, 03-21-2005 - 4:49pm
Hi I hear a lot about crunches??what are they and how many calories do you burn doing them?
iVillage Member
Registered: 06-17-2003
In reply to: mc52877
Mon, 03-21-2005 - 6:00pm
They are like sit ups, but they don't go all the way up. There are a number of different ways to do them depending on the muscle you want to work.