Backward Arm Circle

Backward arm circles are a dynamic shoulder mobility exercise that warms up the rotator cuff and upper back muscles. This movement involves rotating extended arms in a reverse circular motion to improve shoulder joint flexibility and posture.

Exercise movement reviewed by:Marie Braga, PT, DPT, CSCS
How Iridium Helps

Even for a simple mobility drill like this, the AI tracks your consistency and perceived exertion to gauge shoulder health. By analyzing your recovery data and previous pushing volume, the app determines if you need more extensive warm-up sets to prevent injury. If you consistently rate this movement as difficult or painful, the system learns to substitute it with regression exercises to protect your rotator cuff while still improving mobility.

Form Cues

Do
  • Stand tall with your core engaged and feet shoulder-width apart
  • Extend your arms fully to the sides at shoulder height
  • Initiate the movement from your shoulder joint, not your wrists
  • Squeeze your shoulder blades together slightly as your arms move backward
  • Keep your neck neutral and head looking straight forward
Don't
  • Don't hunch your shoulders up toward your ears
  • Don't allow your ribcage to flare out excessively
  • Don't bend your elbows significantly during the rotation
  • Don't swing your arms wildly using momentum
  • Don't jut your head forward as you rotate

Common Mistakes

  • Shrugging shoulders upward
  • Bending the elbows
  • Excessive torso swaying
  • Moving too quickly
  • Limited range of motion

Muscles Worked

This exercise primarily targets the posterior deltoids and the rotator cuff muscles, which are crucial for shoulder stability. It also engages the rhomboids and lateral deltoids to maintain arm elevation and retraction, effectively waking up the upper back for pulling or pressing movements.

Primary

Posterior Deltoid

Secondary

Lateral Deltoid

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