REMEMBER. ROFL Frontpage, thanks guys.. actually to wind up your arm you need to engage the rotator cuff (4 muscles) along with the trapezius, deltoids and latissimus dorsi to some extent then pec maj REMEMBER ROFL Frontpage thanks guys actually to wind up your arm you need engage the rotator cuff (4 muscles) along with trapezius deltoids and latissimus dorsi some extent then pec maj
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