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Dumbbell Arnold Press animation

How to do the Dumbbell Arnold Press

ShouldersDeltsDumbbellIntermediate

Named after Arnold Schwarzenegger himself, this press earns its legendary status by recruiting all three heads of the deltoid through a uniquely demanding rotation that standard presses simply cannot match. Master it and you will build rounder, fuller shoulders that stand out from every angle.

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Muscles worked

Primary
Deltoids
Secondary
TrapeziusTriceps

Step-by-step

  1. Start seated or standing with dumbbells at shoulder height, palms facing you and elbows tucked close to your chest.
  2. Press the dumbbells upward while simultaneously rotating your forearms outward so your palms face forward at the top.
  3. Lock out overhead without shrugging your traps, keeping your core braced and lower back neutral throughout.
  4. Reverse the rotation as you lower the dumbbells back to the starting position under full control, taking at least two seconds on the way down.

Common mistakes

  • Rushing the rotation by flipping the wrists too early reduces front delt engagement, so commit to a smooth synchronized press and rotate throughout the entire range of motion.
  • Flaring the elbows excessively at the bottom places unnecessary stress on the shoulder joint, so keep elbows slightly in front of your torso at the start position.
  • Using too much weight forces you to shorten the rotation and sacrifice the movement pattern that makes this exercise unique, so choose a load that allows complete palm-in to palm-out rotation on every rep.

Pro tip — At the very top of the press, actively externally rotate the dumbbells a fraction further and hold for one second, this small pause maximizes lateral and rear delt recruitment that most lifters leave untrained.

Sets & reps by goal

Build muscle3–4 sets × 6–10 reps
Get stronger4–5 sets × 3–6 reps
Lose fat / tone3 sets × 10–12 reps

Rest: 2–3 min between sets (60–90s on lighter days).

More Shoulders exercises

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