The Power Cage (also known as a power rack, squat cage, or squat rack) is an item of weight training equipment designed to allow for a safe free weight workout using a barbell without the movement restrictions imposed by equipment such as the Smith machine. It is also sometimes referred to as a power rack.
It is essentially comprised of four vertical posts with movable horizontal bar catchers on each side. For strength the uprights are normally linked together top and bottom thus producing a cage. A safe free weight workout can be undertaken since dropping the weight will result in it being caught by the side bars.
A power cage can be used for a number of exercises including squat, bench press and bicep curl.
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