Single Arm Dumbbell Lateral Raise

Also known as: single arm dumbbell side raise

In SetGrip: Dumbbell Lateral Raise (Single Arm)

Secondary muscles
Traps, Triceps
Body part
Shoulders
Laterality
Unilateral (one arm at a time)
Category
Strength

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Raising one dumbbell at a time gives each side delt your full attention and lets you match reps exactly between arms, which two-dumbbell sets never verify. Since nothing braces you, the offset load makes your obliques work to keep the torso level; if you want that removed, the supported version has you hold onto something solid.

How to do the Single Arm Dumbbell Lateral Raise

  1. Stand with your feet shoulder-width apart, holding a dumbbell in one hand with your palm facing your body.
  2. Keep your back straight and your core engaged throughout the exercise.
  3. Raise the dumbbell to the side, keeping your arm straight and your palm facing down.
  4. Continue lifting until your arm is parallel to the ground.
  5. Pause for a moment at the top, then slowly lower the dumbbell back to the starting position.
  6. Repeat for the desired number of repetitions, then switch to the other arm.

Tip: Lead with the elbows and think of reaching wide rather than lifting up.

Muscles worked

Primary

Delts · Shoulders

Front raises hit the front delt, lateral raises the side, and Y or rear raises the back head; whichever you pick, the burn should build across the top of the shoulder by the last few reps.

Secondary

  • TrapsThe upper traps will take over if you shrug, so a slight downward pull of the shoulders keeps them out of it.
  • Triceps

Common mistakes

  • Swinging from the hipsa small bounce at the bottom is the sign of a weight that is too heavy; lighten it and lift from a dead stop.
  • Shrugging as you raisethe traps take over when the shoulders rise toward the ears; keep them down and lead with the elbows.
  • Raising far above shoulder heighton lateral and front raises the upper traps take over past parallel, so stop around shoulder level unless the variation is built to go overhead.
  • Locked elbowskeep a soft bend in the elbow throughout so the load stays on the shoulder rather than the joint.

Sets, reps and where it fits

GoalSets × repsRest
Muscle growth3–4 × 10–15 per side60–90 s
Endurance / finisher2–3 × 15–20 per side45 s
StrengthNot ideal — pick a compound lift for the same muscle

Raises are accessory work and belong after the presses in a shoulder or push session. Superset lateral raises with a rear delt fly using the same dumbbells for a complete shoulder finisher.

Variations and alternatives

Frequently asked questions

What muscles does the Single Arm Dumbbell Lateral Raise work?

The Single Arm Dumbbell Lateral Raise primarily works the delts. It also involves the traps and triceps, which assist the movement and stabilise the joints.

Is the Single Arm Dumbbell Lateral Raise good for beginners?

Yes. The Single Arm Dumbbell Lateral Raise is rated beginner: it uses a dumbbell and the movement is simple to learn. Start light, focus on the full range of motion and add load once every rep looks the same.

What can I do instead of the Single Arm Dumbbell Lateral Raise?

If you cannot do the Single Arm Dumbbell Lateral Raise, try the Single Arm Supported Dumbbell Lateral Raise, the Incline Bench Single Arm Dumbbell Lateral Raise or the Dumbbell Seated Bent Arm Lateral Raise. Each of them trains the delts through a similar movement, so you can swap them in without changing the rest of the workout.

How many sets and reps should I do?

It depends on your goal. For the Single Arm Dumbbell Lateral Raise, a sensible starting point is muscle growth: 3–4 × 10–15 per side with 60–90 s rest; endurance / finisher: 2–3 × 15–20 per side with 45 s rest. Do it after your compound lifts. It is a finishing movement, not the main event.

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