Arnold Press
Named for the man who popularized it, the Arnold press adds a rotation to the dumbbell shoulder press: you start with palms facing you and finish with palms facing forward. That twist extends the range of motion and keeps the front and side delts under tension longer than a standard press. Choose it when your pressing has gone stale or you want more delt work per rep from moderate dumbbells.
How to do the arnold press, step by step
- Sit on a bench set just short of vertical with a dumbbell in each hand.
- Start with the dumbbells at shoulder height in front of you, palms facing your body, as if finishing a curl.
- Press upward while rotating your palms outward, so your hands face forward by the time they pass your head.
- Continue pressing to full extension overhead with the dumbbells nearly touching.
- Reverse the motion, rotating the palms back toward you as you lower, and finish with the dumbbells back in front of your shoulders.
- Keep the tempo smooth — around two seconds up and two to three seconds down — so the rotation stays controlled.
Form cues that fix most reps
Rotate gradually through the middle of the press, not all at once at the bottom.
Use less weight than your regular dumbbell press — the longer range and rotation demand it.
Keep your forearms under the dumbbells throughout; the rotation happens at the shoulder, not the wrist.
Common mistakes (and the fix)
Arnold Press sets and reps
Match the rep range to your goal, not the other way around. These are the standard evidence-based ranges:
| Goal | Sets × Reps | Rest |
|---|---|---|
| Strength | 3–5 × 3–6 | 2–3 min |
| Muscle growth | 3–4 × 8–12 | 60–90 sec |
| Endurance | 2–3 × 15–20 | 30–60 sec |
How our free programs prescribe it
Arnold Press FAQ
What muscles does the Arnold press work?
The front and side deltoids do the bulk of the work, with the triceps completing lockout. Because the movement starts with the arms in front of the body and rotates outward, the front delt works through a longer arc than in a standard press.
How many sets and reps should I do?
Three to four sets of 8–12 reps fits this lift well. It rewards control more than load, so keep a rep or two in reserve rather than grinding — a missed Arnold press is awkward to bail out of.
Arnold press vs regular dumbbell shoulder press — which is better?
The Arnold press adds range and time under tension per rep; the standard press lets you go heavier. If size is the goal, either works, and rotating them across training blocks keeps both fresh. Lifters with cranky shoulders often prefer the standard press since the rotation under load bothers some joints.
More shoulders exercises
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