The infraspinatus muscle works alongside three other rotator cuff muscles to stabilize and move the shoulder. This triangular-shaped structure primarily externally rotates the arm. This means it rotates the arm toward the outside of the body. It also assists with moving the scapula (shoulder blade) when your shoulder joint is fixed (not moving). Occasionally, repetitive movements or other disorders can cause pain in this muscle.
Swimmer's shoulder is a common orthopedic injury in people who swim. It is caused by abnormal rubbing and pinching of the structures in your shoulder. This injury is experienced by about 40% to 90% of swimmers at one time or another.
Pain from your chest to your shoulder can have many causes, and may involve your heart, lungs, or other internal organs. If your pain is sudden or severe, seek immediate medical care.
Side sleeping comes with many benefits. It keeps your airways open, which minimizes snoring and sleep apnea symptoms. The potential drawback? You might experience shoulder pain from sleeping on your side because you’re putting weight on one shoulder for several hours.
The shoulder is an intricate joint, capable of a wide range of movements for both daily activities and physical exercise. This intricate joint is susceptible to various injuries and conditions due to its design. Shoulder impingement syndrome (SIS), also clinically recognized as subacromial impingement syndrome (SAIS), is a prevalent source of shoulder discomfort, which is a spectrum of disorders such as rotator cuff tendinopathy, partial or complete tears, and inflammation of the subacromial bursa.
