What is shoulder external rotation (resisted)?

External rotator strengthening exercise

1. Start by tying a piece of elastic exercise material to a doorknob. You can use surgical tubing or Thera-Band. (You may also hold one end of the band in each hand.)
2. Stand or sit with your shoulder relaxed and your elbow bent 90 degrees. Your upper arm should rest comfortably against your side. Squeeze a rolled towel between your elbow and your body for comfort. This will help keep your arm at your side.
3. Hold one end of the elastic band with the hand of the painful arm.
4. Start with your forearm across your belly. Slowly rotate the forearm out away from your body. Keep your elbow and upper arm tucked against the towel roll or the side of your body until you begin to feel tightness in your shoulder. Slowly move your arm back to where you started.
5. Repeat 8 to 12 times.