Shoulders Exercise · Dumbbell
Dumbbell Lying External Shoulder Rotation
This is a rotator cuff exercise first and a deltoid exercise a distant second — light weight, slow rotation, and full control matter far more here than load. Training external rotation directly addresses a movement pattern that's chronically weak in most lifters, since almost nothing in a typical pushing-and-pulling routine trains it. It's commonly prescribed for shoulder health and injury prevention rather than for building visible muscle.
Go to the movement stepsAlso known as: Db Lying External Shoulder Rotation, Dumbell Lying External Shoulder Rotation
Exercise reference published by PlanWorkouts; see our editorial standards.
How to Do the Dumbbell Lying External Shoulder Rotation
- Lie on your side on a flat bench with your upper arm pinned to your torso and your elbow bent to 90 degrees.
- Grip a dumbbell with your palm facing downward.
- Keeping your upper arm pressed against your side, rotate your forearm upward as far as you can.
- Hold briefly at the top, then rotate your forearm back down to the start.
- Continue for the target number of reps, then switch to the other side.
Quick Exercise Facts
Practice and progression
Choose a short set of controlled repetitions or a manageable hold, following this movement's setup. End the set when you lose the demonstrated position. Build control before increasing repetitions, duration or resistance; holds, carries and moving drills need different prescriptions.
Technique & Form Tips
Use the movement steps and demonstration for this particular exercise. Match the body position, support points and direction of movement before adding resistance or speed. Holds, cardio movements and lifting exercises need different execution cues.
Common Mistakes to Avoid
- Erratic tempo: Avoid rushing; perform each phase of the movement with deliberate, steady control.
- Copying another exercise setup: Follow this exercise's demonstrated support and body position rather than applying an unrelated lifting cue.
- Losing support: Keep the demonstrated footing, grip or support secure throughout the movement.
How to Breathe During This Exercise
Breathe steadily throughout the movement.
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Comfort and Control
Choose a load and range you can control. Stop if the movement causes pain. If discomfort persists, stop and ask a qualified professional about an appropriate exercise and range.
General guidance: Mayo Clinic on weight-training technique. Follow the specific movement steps above for this variation.
Muscles Worked
The Dumbbell Lying External Shoulder Rotation mainly targets your Delts, with your Rotator Cuff helping support the movement, along with your Triceps.
More Shoulders Exercises
Band Front Lateral Raise
Band Front Raise
Band Reverse Fly
Band Shoulder Press
Band Standing Rear Delt Row
Band Twisting Overhead Press
More Delts Exercises
Band Y-Raise
Barbell Front Raise
Barbell One Arm Snatch
Barbell Rear Delt Raise
Barbell Rear Delt Row
Barbell Seated Behind Head Military Press
FAQ
- What muscles does the Dumbbell Lying External Shoulder Rotation work?
- The Dumbbell Lying External Shoulder Rotation mainly works your delts. It also helps strengthen your rotator cuff and triceps. Using good, smooth form makes sure you work the right muscles and avoid unnecessary strain on your joints.
- What equipment do I need for the Dumbbell Lying External Shoulder Rotation?
- You do the Dumbbell Lying External Shoulder Rotation with a dumbbell. Make sure your equipment is set up safely before starting. If you work out at home or have limited gear, check out our alternative exercises below.
- What form mistake should I watch for on the Dumbbell Lying External Shoulder Rotation?
- One mistake to watch for is erratic tempo: Avoid rushing; perform each phase of the movement with deliberate, steady control.. Use a comfortable range and a controlled return; reduce the load if you cannot maintain the demonstrated setup.
- How many sets and reps should I perform on the Dumbbell Lying External Shoulder Rotation?
- Use a short set of controlled repetitions, or a manageable hold when the movement is static. Stop when you cannot maintain the demonstrated position. Build control before adding duration, repetitions or resistance; the appropriate amount depends on the exercise and your experience.