Produit
THE B.O.S.S. SYSTEM E-BOOK (anglais seulement)
Le prix initial était : 29,99$.22,49$Le prix actuel est : 22,49$. USD
The BOSS (Bunch Of Skilled Singles) system is a form of block periodization in which you develop strength by training exclusively using single reps.
Simple, Weird, Unsettling, Effective