Dumbbell Alternate Lateral Raise exercise animation (Male)

Dumbbell Alternate Lateral Raise

Target muscle
—
Equipment
Dumbbell
Body part
Shoulders
Type
Strength

The dumbbell alternate lateral raise is a shoulder isolation exercise that builds the lateral (side) deltoid one arm at a time. Raising a dumbbell out to the side, then alternating, lets you focus on each shoulder individually with strict, controlled form. It's a simple way to add width to your shoulders and improve overhead stability.

How to do the Dumbbell Alternate Lateral Raise

  1. 1Stand tall with your feet about shoulder-width apart, holding a dumbbell in each hand at your sides, palms facing in.
  2. 2Brace your core, keep a soft bend in both elbows, and let your shoulders sit down and back.
  3. 3Raise one dumbbell out to the side in a smooth arc, leading with your elbow until your upper arm reaches shoulder height.
  4. 4Keep the working elbow slightly higher than your wrist at the top, with your palm facing down or slightly forward.
  5. 5Pause briefly at the top, then lower that dumbbell under control back to your side.
  6. 6Repeat the same controlled raise with the opposite arm, alternating one rep per side.
  7. 7Continue alternating until you finish your reps, then set the dumbbells down with control.

Form tips

  • Lead with your elbow rather than your hand so the side delt does the work instead of your traps.
  • Stop the raise at about shoulder height; going higher shifts load onto the upper traps.
  • Keep your torso upright and still so you don't swing or lean to launch the weight.
  • Use a light, controlled weight and a slow lowering phase to keep constant tension on the delt.

Common mistakes

  • Swinging the torso or using momentum to throw the dumbbell up, which takes tension off the lateral deltoid and risks the lower back.
  • Shrugging the shoulder up toward the ear, which shifts the work to the upper traps instead of the side delt.
  • Raising the dumbbell above shoulder height, which reduces delt tension and can pinch the shoulder joint.
  • Going too heavy and letting the elbow drop below the wrist, which turns it into a front-raise-like movement and loses the side-delt focus.

Frequently asked questions

What muscles does the dumbbell alternate lateral raise work?

It primarily works the lateral (side) head of the deltoid, the muscle that gives your shoulders width. The supraspinatus and upper trapezius assist as minor contributors to lift and stabilize the arm.

Why alternate arms instead of raising both at once?

Alternating one arm at a time lets you concentrate on each shoulder individually and keep stricter form. It also makes it easier to avoid swinging your torso to help the weight up.

Is the dumbbell alternate lateral raise good for beginners?

Yes. It's a straightforward isolation move that teaches you to control the side delt without heavy loading. Start light so you can keep your torso still and lead with your elbow.

How heavy should the dumbbells be?

Use a light weight you can raise to shoulder height with a soft elbow and no swinging. If you have to heave or shrug to lift it, the dumbbell is too heavy for clean lateral raises.

How many sets and reps should I do?

For shoulder size and endurance, 3 to 4 sets of 12 to 15 reps per arm is a sensible default. Pick a weight you can control through a full, strict range without using momentum.

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