Did you know that the shoulder joint is the least stable joint in the body? This is because it has the largest range of motion of any joint. Because of this inherent weakness, it’s important to incorporate strength training specifically targeted at increasing stability of the shoulder, while maintaining its flexibility.

The rotator cuff is comprised of the muscles and tendons that surround the shoulder. This collection of tissues layer together to hold the scapula, humeral head and clavicle together.

External shoulder rotation

Performing this exercise will strengthen the muscles of the rotator cuff, specifically the infraspinatus and teres minor. External shoulder rotation will help decrease the chance of injury to the shoulder. Healthy shoulders also improve mechanical running and walking efficiency, posture and oxygen uptake.


  1. Arms down at your sides.
  2. Elbows bent to 90 degrees, hands in front of you.
  3. Hold a band in each hand and pull apart. Keep your elbows against your body.
  4. Engage your core for proper posture and avoid arching your back.
  5. Perform two sets of 20 reps.

Need a band? We’ve got you covered. Stop by the Hyatt Training studio, say hi and take home a resistance band!

Additional shoulder and core strengthening exercises

Check out our key strength exercises and stretching guide for more ways to keep your shoulders and core strong and flexible.

More band exercises