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Muscle group

Shoulders

The rounded muscles capping the shoulder joint that lift and rotate the arms in every direction.

Muscle group

Overview

The shoulder muscles are led by the deltoid, the rounded muscle that caps the top of the arm in three parts — front, side and rear. Beneath sit the smaller rotator-cuff muscles that help steer and steady the joint.

Together they raise the arms to the front, side and overhead and rotate them, giving the shoulder its huge range of movement. That makes them central to throwing, pressing overhead and racquet sports.

Good to know

  • The shoulder is the most mobile major joint in the body
  • Involved in throwing, serving, pressing and swimming
  • Often trained with attention to balanced, all-round movement

Where it’s used

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How this page is maintained

Content type
Muscle group
Provenance
Tier A — evergreen educational
Verified external sources
0
Content updated
2026-07-06

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