Overuse injuries can affect muscles, ligaments, tendons, bones, and growth plates. For example, overhand pitching in baseball can be associated with injuries to the elbow. Swimming is often associated with injuries to the shoulder. Gymnastics and cheerleading are two common activities associated with injuries to the wrist and elbow.
Stress fractures are another common overuse injury in young athletes. Bone is in a constant state of turnover—a process called remodeling. New bone develops and replaces older bone. If an athlete's activity is too great, the breakdown of older bone occurs rapidly, and the body cannot make new bone fast enough to replace it. As a result, the bone is weakened and stress fractures can occur—most often in the shinbone and bones of the feet.
Source: Dr. Thomas M. Mitchell DC, CCSP - Chicago Institute for Health and Wellness