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Old 02-03-2010, 02:37 AM
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rockdawg21 rockdawg21 is offline
I'm kind of a big deal
 
Join Date: Jan 2009
Location: San Antonio, TX
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I prefer high intensity intervals as they don't take very long. It's an extremely brutal 8-12 minutes, but it's done very quickly and it's very effective at burning fat and sparing muscle mass.
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