Barbell Shrug
Muscles
Target
Trapezius, Upper
Synergists
Trapezius, Middle
Levator Scapulae
Stabilizers
Erector Spinae
Instructions
Preparation
Stand holding barbell with a overhand or mixed grip; shoulder width or slightly wider.
Execution
Elevate shoulders as high as possible. Lower and repeat.
Comments
Since this movement becomes more difficult as full shoulder elevation is achieved, a height criteria for shoulder elevation may be needed. For example, raising the shoulders until the slope of the shoulders become horizontal may be considered adequate depending upon individual body structure. Also see Shoulder Shrug Errors.
Source: exrx.net