our program P90X is muscle confusion

Sujet dans 'Forum Littérature / BD / Manga / Comics' lancé par hym84755cq, le 21 août 2010.

  1. hym84755cq

    hym84755cq
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    Hop, du balai.

    The success of our program P90X is muscle confusion. " Many people often make the mistake of putting in the same workout for a few months.
     
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