The infraspinatus is a muscle located in the shoulder region, part of the rotator cuff group. It plays a crucial role in helping to stabilize the shoulder joint and allows for the rotation of the arm. This muscle is essential for various activities, such as throwing a ball or lifting objects overhead. In addition to its functional importance, the infraspinatus is often targeted in physical therapy and strength training to prevent injuries and improve shoulder mobility. Strengthening this muscle can enhance athletic performance and support daily activities, making it vital for both athletes and non-athletes alike.