Shoulders · Bodyweight

Internal Rotation Shoulder - Medial Rotation

How to do the internal rotation shoulder - medial rotation, the muscles it works, and the mistakes to avoid. Pulled straight from the Kovo app's exercise library.

Animated demonstration of the Internal Rotation Shoulder - Medial Rotation
Equipment
Bodyweight
Difficulty
Beginner
Logged as
Reps
Movement
Rotation
Mechanic
Isolation

How to do it

Bend your elbow to 90 degrees and tuck it against your side, forearm pointing outward. Keeping the elbow pinned, rotate your forearm inward across toward your stomach. Hold the end position briefly, then return with control and repeat on each arm.

  1. 1Feel your shoulder's internal rotators pull the forearm across your body
  2. 2Keep your elbow bent at 90 degrees and glued to your side
  3. 3Move deliberately through a pain-free range

Common mistakes

  • Do not rotate your torso or swing the arm across
  • Avoid lifting the elbow away from your side
  • Do not push into discomfort at the end range

Muscles worked

The internal rotation shoulder - medial rotation mainly works the internal rotators.

  • Internal RotatorsPrimary
  • ForearmsMinor
  • Mid ChestMinor
  • LatsMinor
  • Front DeltsMinor

Kovo programs the internal rotation shoulder - medial rotation for you and tracks it every session.

We build your whole program, drop the right lifts into each workout, and adjust your weights as you get stronger. Free on iOS and Android.

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Last reviewed June 2026.