Dumbbell Seated External Shoulder Rotation

Perform the dumbbell seated external shoulder rotation to strengthen the rotator cuff and improve shoulder stability.

  1. Sit on a bench with your back straight and feet flat on the floor.
  2. Hold a dumbbell in one hand with your elbow bent at 90 degrees, keeping it close to your body.
  3. Rotate your arm outward, raising the dumbbell away from your body while keeping your elbow stationary.
  4. Return to the starting position and repeat for the desired number of repetitions.

How to perform the Dumbbell Seated External Shoulder Rotation

  1. Set up. Set up in a stable, balanced starting position appropriate for the Dumbbell Seated External Shoulder Rotation using your dumbbell.
  2. Brace and execute. Brace your core, control the descent, and move through a full pain-free range of motion while emphasizing your rotator cuff.
  3. Reset. Reverse the movement under control and reset between repetitions, keeping your form crisp on every rep.

Coaching cues

  • Move with intent — every rep should feel deliberate, not rushed.
  • Drive force through your rotator cuff rather than momentum.
  • Keep your breathing steady: exhale on the hard part, inhale on the reset.

Common mistakes

  • Using too much weight and losing positional control.
  • Cutting the range of motion short and missing the target muscle.
  • Letting your spine round or hyperextend instead of staying neutral.

Detailed cues, common mistakes, and demonstration video are available in the Fitly app.

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Variations of Dumbbell Seated External Shoulder Rotation

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