How to Do Dumbbell One-Arm Shoulder Press
Start and end of one clean rep of Dumbbell One-Arm Shoulder Press.
Quick facts
| Primary muscle | Shoulders |
|---|---|
| Secondary muscles | Triceps |
| Equipment | Dumbbell |
| Category | Strength |
How to perform Dumbbell One-Arm Shoulder Press
- Grab a dumbbell and either sit on a military press bench or a utility bench that has a back support on it as you place the dumbbells upright on top of your thighs or stand up straight.
- Clean the dumbbell up to bring it to shoulder height. The other hand can be kept fully extended to the side, by the waist or grabbing a fixed surface.
- Rotate the wrist so that the palm of your hand is facing forward. This is your starting position.
- As you exhale, push the dumbbell up until your arm is fully extended.
- After a second pause, slowly come down back to the starting position as you inhale.
- Repeat for the recommended amount of repetitions and then switch arms.
Muscles worked
- Shoulders (primary): raises and rotates the arms and drives everything overhead.
- Triceps (secondary): straightens the elbow to lock out every press and pushdown.
Sets & reps by goal
| Goal | Sets × reps | Load | Rest |
|---|---|---|---|
| Strength | 3–5 × 3–5 | Heavy (~85%+) | 2–3 min |
| Hypertrophy | 3–4 × 8–12 | Moderate (~65–75%) | 60–90 s |
| Endurance | 2–3 × 15–20 | Lighter (~50–60%) | 30–45 s |
Pick the row that matches your goal. If you're newer, anchor in the hypertrophy range while you groove the form.
Form tips
- Keep the ribs down and the glutes tight so the lower back doesn't arch to 'help' the weight up.
- Each side works on its own, so match the depth and speed of both arms and don't let the stronger side take over.
- Treat every rep the same — a repeatable setup and bar path is what lets you add weight safely over time.
- Warm up the pattern with a couple of lighter, submaximal sets before your working sets.
Common mistakes
- Pressing with the lower back arched instead of a braced, stacked torso.
- Letting the dumbbells drift apart or clang together at the top instead of controlling the path.
- Chasing weight jumps before the current load feels solid on every rep.
Frequently asked questions
What muscles does Dumbbell One-Arm Shoulder Press work?
Dumbbell One-Arm Shoulder Press mainly works the shoulders, with the triceps helping as secondary movers.
What equipment do I need for Dumbbell One-Arm Shoulder Press?
Dumbbell One-Arm Shoulder Press needs a pair of dumbbells.
How many sets and reps should I do for Dumbbell One-Arm Shoulder Press?
It depends on your goal: about 3–5 sets of 3–5 heavy reps for strength, 3–4 sets of 8–12 for muscle growth, or 2–3 sets of 15–20 for endurance. Pick the row that matches your goal. If you're newer, anchor in the hypertrophy range while you groove the form.
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