Arnold Press (Dumbbell)

How to do the Arnold Press (Dumbbell)

1. Sit on a bench with back support and hold dumbbells at shoulder height with palms facing your body and elbows bent.
2. Press the dumbbells upward while simultaneously rotating your hands so your palms face forward at the top.
3. Continue pressing until your arms are fully extended overhead with palms facing away from you.
4. Reverse the motion by rotating your palms back toward you as you lower the dumbbells to the starting position.

Form tips

• Keep the rotation smooth and continuous throughout the press rather than pausing to rotate at any point.
• Maintain tension in your shoulders by stopping just short of full lockout at the top to protect the joint.
• Control the descent and rotation on the way down rather than letting the dumbbells drop quickly.

Common mistakes

• Rotating too early or too late in the movement reduces the exercise's effectiveness by limiting the range of motion through the anterior deltoid.
• Using excessive weight forces you to lean back and recruit the chest, turning it into an incline press instead of a shoulder exercise.
• Flaring the elbows out too wide at the bottom position places unnecessary stress on the shoulder joint and reduces anterior deltoid engagement.

Sets and reps

For hypertrophy, perform 3 to 4 sets of 8 to 12 reps; for strength, use 3 to 5 sets of 5 to 8 reps with heavier weight.

Frequently asked questions

What is the difference between Arnold press and regular dumbbell press?

The Arnold press adds a rotation component, starting with palms facing you and rotating outward as you press, while the standard dumbbell press keeps palms facing forward throughout. This rotation increases anterior deltoid engagement and provides a greater range of motion.

Should I do Arnold press standing or seated?

Seated Arnold press with back support is generally preferred because it isolates the shoulders better and reduces the temptation to use momentum from your legs or lower back. Standing variations can be used but require more core stability and often lead to form breakdown with heavier weights.

Why does Arnold press feel harder than regular shoulder press?

The rotation and extended range of motion place the anterior deltoid under tension for longer and through more angles of movement. The starting position with palms facing you also puts the shoulder in a mechanically disadvantaged position, requiring more work to initiate the press.

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