Your infraspinatus muscle is a thick triangular muscle located at the back of your shoulder. It’s attached to the top of your upper arm bone (humerus) and your shoulder blade (scapula).

There are several potential causes of infraspinatus pain. Some are serious, but none are life threatening ... pain and restrict the infraspinatus muscle’s movements. If the suprascapular ...

When we examined the patient’s shoulder, we saw severe atrophy of the right infraspinatus muscle (Figure 1A) with 4/5 strength in external rotation. O’Brien compression test (resisted shoulder flexion ...

Many other muscles play a part in stabilizing and guiding the shoulder and its movements. Each muscle and muscle group plays a role in supporting your shoulder and allowing the wide range of ...