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A traditional upper body of most body builders exercise, barbell shrug directs the trapeze. The movement is short, but the result is great. A big trapeze makes a big difference in your appearance. The muscles of the middle and lower back (Romboid, erector spinae) and abdomen (oblique, rectus abdominis) are also involved to a lesser extent. To avoid injury, do not turn your shoulders while shrugging.
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