S Serena New member Aug 21, 2009 #1 I am a 23yr old girl and I have recently started doing bicycle crunches to flatten my belly. I am doing about 20 crunches daily. How long will it take to show results?
I am a 23yr old girl and I have recently started doing bicycle crunches to flatten my belly. I am doing about 20 crunches daily. How long will it take to show results?
