This upper-body exercise primarily targets the traps (trapezius muscles). Behind-The-Back Smith Machine Shrug can allow you to get your body farther away from the bar and helps to move your butt out of the way and pull the bar higher and your shoulders back more for the better middle trap.
Barbell Shrug primarily targets the traps and also engages both core abdominal muscles and the forearm. While lifting the weight, your core activates to stabilize your upper body. In addition, the barbell shrug improves your forearm strength.
A dumbbell Shrug is the best exercise for toning your upper back muscles, building big traps, and improving your posture.
