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Old 08-17-2007, 08:22 AM   #1 (permalink)
Cun
Junior Member
 
Join Date: Aug 2007
Posts: 7
Cun is on a distinguished road
Default Clenched stomach muscles

Quick question,
I recently started working out,
and the next day my abdomen muscles were clenched really tight where I couldn't even stand up straight without pain.
Why is that?
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