The Arnold Press is a variation of the standard overhead dumbbell press that incorporates a twist and adds depth to your range of motion. It is a compound exercise that activates all of the targeted muscles and improves your range of motion. The Arnold Press primarily works the following muscles in your shoulders, arms, and chest:
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Deltoid: The deltoid muscle is the primary muscle of the shoulder. Its three heads - the anterior, lateral, and posterior deltoid - work together to help you lift, move, and stabilize your arms and shoulders.
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Triceps: The triceps are located on the back of your upper arm and are responsible for extending your elbow.
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Chest: The chest muscles, or pectorals, are located on the front of your upper body and are responsible for moving your arms across your chest.
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Core: The core muscles, including the abdominals and obliques, are responsible for stabilizing your torso during the exercise.
The Arnold Press is a more advanced version of the traditional dumbbell shoulder press and is best for intermediate to advanced weightlifters. It is a tried-and-true strength training variation that can significantly benefit and increase lean muscle mass in your shoulders and upper body. The Arnold Press also exhibits a full and wide range of motion, starting from a low point to arms overhead, stimulating and isolating all three heads of your deltoids.
