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  7. Dumbbell Unilateral Scapula Raise

Exercise guide

Dumbbell Unilateral Scapula Raise

  • Intermediate
  • Compound
  • Rep-based
  • Back
  • Shoulders
  • Waist

This unilateral isolation exercise targets the deltoids and serratus anterior by moving the arm within the scapular plane, promoting shoulder health and stability. It effectively engages the lower traps and serratus by emphasizing controlled scapular upward rotation and stability.

Reviewed by the Crucible Fit team · Updated June 2026

Watch the Dumbbell Unilateral Scapula Raise demonstrationVideo and instructions for every movement are in the Crucible Fit app.

Muscles worked

Primary

  • Lats
  • Rhomboids
  • Trapezius

Secondary

  • Deltoids
  • Erector spinae
  • Obliques
  • Serratus anterior

Equipment

  • Dumbbell

Setup

  1. Set an incline bench to a 45-degree angle.
  2. Lean your chest firmly against the backrest, using your non-working arm to brace against the top of the bench for stability.
  3. Hold a dumbbell in your working hand with a neutral grip (palm facing inward), letting the arm hang straight toward the floor.
  4. Stagger your feet or kneel to create a stable base that prevents your torso from rotating.

How to do it

  1. Raise the dumbbell upward and slightly forward at a 30-to-45-degree angle from your torso (the scapular plane).
  2. Exhale as you lift the weight until your arm is parallel to the floor, focusing on the shoulder blade moving around the ribcage.
  3. Pause for a second at the top of the movement to maximize the contraction of the serratus anterior.
  4. Inhale as you slowly lower the dumbbell back to the starting position, maintaining tension throughout the descent.

Form checklist

  • Keep a slight, fixed bend in the elbow throughout the entire set.
  • Ensure the movement follows the natural angle of the shoulder blade (the scapular plane), not directly to the side.
  • Avoid shrugging the shoulder toward your ear; keep the shoulder blade down and back at the start.
  • Keep your chest in contact with the bench to eliminate the use of momentum or torso swinging.

Pro tips

  • Think about 'reaching' the dumbbell toward the corner of the room to better engage the serratus anterior and lower trapezius.
  • Focus on the mind-muscle connection by visualizing the shoulder blade rotating upward and outward as the arm rises.

Make it harder

  • Add a 3-second isometric hold at the top of each repetition to increase time under tension.
  • Slow the eccentric (lowering) phase to a 4-second count to challenge scapular control.

Frequently asked

What muscles does the dumbbell unilateral scapula raise work?
The dumbbell unilateral scapula raise primarily targets the lats, rhomboids, and trapezius, and also works the deltoids, erector spinae, obliques, and serratus anterior as secondary muscles.
What equipment do you need for the dumbbell unilateral scapula raise?
The dumbbell unilateral scapula raise uses dumbbell.
Is the dumbbell unilateral scapula raise good for beginners?
The dumbbell unilateral scapula raise is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.

Related exercises

  • Band Bent Over Lat PulldownIntermediate · lats, rhomboids, and trapezius
  • Band Bent Over One Arm KickbackBeginner · biceps, lats, rhomboids, and trapezius
  • Band One Arm Twisting Seated RowIntermediate · lats, rhomboids, and trapezius
  • Barbell Incline RowIntermediate · lats, rhomboids, and trapezius

Train it with Crucible Fit.

Every movement in this library is in the app with video and instructions, ready for your own sessions on the days between Crucibles. Your first Crucible is on us.

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