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Resistance Band Standing 90-Degree Shoulder External Rotation

Step by step instructions, muscle activation and variants for the Resistance Band Standing 90-Degree Shoulder External Rotation.

EasyRear shoulders

About this exercise

The resistance band standing 90-degree shoulder external rotation strengthens the rotator cuff external rotators with the shoulder abducted to 90 degrees. Performing the rotation from this elevated arm position more closely mimics sport-specific and overhead movement patterns, making it a valuable addition to shoulder rehab and prehab routines.

How to Perform

  • Anchor a resistance band at shoulder height to a stable object in front of you
  • Stand facing the anchor and raise your working arm to shoulder height, elbow bent 90 degrees
  • Hold the band with your forearm pointing toward the anchor (palm facing down)
  • Rotate your forearm upward until it points toward the ceiling, keeping the upper arm stationary
  • Pause briefly at the top of the movement
  • Slowly return your forearm to the starting horizontal position under control
  • Complete all reps on one side, then switch arms

Muscle Activation

Primary
Rear shoulders
Secondary
Side shoulders

About the Resistance Band Standing 90-Degree Shoulder External Rotation

The Resistance Band Standing 90-Degree Shoulder External Rotation is a foundational movement that builds strength and muscle through controlled, progressive overload. Train it 1 to 2 times per week with 3 to 5 working sets per session, gradually adding weight or reps as form holds up.