deltsdumbbell

dumbbell lying external shoulder rotation

dumbbell lying external shoulder rotation is a common strength training exercise. Below are form tips, steps, and demos.

Steps

Step 1

Lie on your side on a flat bench with your upper arm against your side and your elbow bent 90 degrees.

Step 2

Hold a dumbbell in your hand with your palm facing down.

Step 3

Keeping your upper arm against your side, slowly rotate your forearm upward as far as possible.

Step 4

Pause for a moment at the top, then slowly lower your forearm back down to the starting position.

Muscles & body parts

Primary muscles

delts

Secondary muscles

rotator cufftriceps

Primary body parts

shoulders

Common mistakes & warnings

Form & control

Avoid momentum and excessive swing; keep core stable; match breath to movement; control the eccentric phase.

Control breathing and core; keep a steady tempo.

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