Rotator Cuff External Rotation

Standing rotator cuff exercise demonstrating shoulder external rotation while holding a light dumbbell

START POSITION:

  • Stand upright with feet approximately shoulder-width apart and maintain a neutral spine.
  • Hold a very light dumbbell vertically in one hand with the elbow bent approximately 90 degrees.
  • Keep the upper arm alongside the ribs, with the elbow close to the torso and the forearm directed forward.
  • Keep the shoulders relaxed and engage the abdominal muscles to maintain a stable position.

PROCEDURE:

  • Slowly rotate the shoulder outward, moving the forearm away from the front of the body toward the side while keeping the elbow bent.
  • Keep the upper arm close to the ribs and avoid twisting the torso or moving the elbow away from the body.
  • Continue through a comfortable range of motion without forcing the shoulder joint.
  • Slowly rotate the forearm inward to return to the starting position under control.
  • Repeat using slow, controlled movements, then perform the exercise with the opposite arm.

NOTES:

  • Precaution: Avoid using heavy dumbbells or forcing the shoulder beyond a comfortable range of motion.
  • Precaution: Do not compensate by twisting the torso, shrugging the shoulder or allowing the elbow to move away from the ribs.
  • Precaution: A vertically held dumbbell provides little direct resistance to external rotation when the forearm moves horizontally. This version is better suited to practicing controlled shoulder movement than strengthening the external rotators.
  • Beginner variation: Perform the movement without a dumbbell, concentrating on comfortable shoulder rotation and control.
  • Strengthening variation: Use a light resistance band or cable positioned to resist outward rotation while keeping the elbow close to the torso.