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  1. #1
    Registered User Eluppo90's Avatar
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    Average bicep size of a 13yo?

    Hello, I'm 13 and I have a bicep size of 12.5. I was wondering if that's above average or just average, I'm 5'4 138 lbs and I have a body fat percentage of 23-24% if it helps.
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  2. #2
    Common sense/moderation. gbullock32's Avatar
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    Realistically, probably average, most kids at 13 wont have gone enough into puberty to add any significant muscle mass so it would be more or less similar across the board.
    Short cuts to success are often paved with lies.
    1/13/16: Massive hernia.
    5/10/16: Finally back to lifting, light but improving.

    Why Teens shouldn't cut/Lack of progress thread- http://forum.bodybuilding.com/showthread.php?t=169272763&p=1397509823#post1397509823
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