Tendinitis is a medical condition in which there is inflammation of tendons in the body. Occurring most commonly in the knees, hands, wrist ankles and elbows, tendinitis is painful and cause aches, stiffness and a sense of internal burning and irritation of tendons. Additionally, there can be swelling, decreased mobility and decreased function in areas of the body that are affected. There are several identifiable causes of tendinitis.
Repetitive Motion
A major cause of tendinitis is repetitive motion that occurs in the course of daily activities. If an individual constantly performs the same tasks day in and day out, there is a strong possibility of that individual developing tendinitis. The National Institute of Neurological Disorders and Stroke explained that repetitive activities that do not involve sufficient recovery periods are particularly problematic. Additionally, incorrect body alignment and movement patterns are significant risk factors in the development of tendinitis.
Abnormal Joint Structure
While repetitive motion is the major cause of tendinitis in most people, abnormal joint structure can also lead to onset of tendinitis. In the May 2002 issue of "The American Journal of Sports Medicine," researchers investigated the relationship between abnormal patellar tilt in the knee and tendinitis. Results of the study indicated that abnormal tilt in the patellar portion of the knee significantly contributed to patients developing tendinitis in the knee. The implications of this study are that genetic abnormalities may predispose an individual for onset of tendinitis regardless of other factors.
Other Medical Issues
Tendinitis can be caused by other medical issues, which in many cases can also exacerbate the complications from tendinitis. The University of Maryland Medical Center explains that problem such as being overweight can increase the amount of stress on joints and tendons. This added stress on joints and tendons can lead to the development of tendinitis. Additionally, a condition such as arthritis, which causes inflammation in joints and tissue in the body, can increase the risk for onset of tendinitis.
References
- National Institute of Neurological Disorders and Stroke
- American Journal of Sports Medicine: "Evidence of Abnormal Anteroposterior Patellar Tilt in Patients with Patellar Tendinitis with Use of a New Radiographic Measurement" T. Tyler, et. al. May 2002.
- University of Maryland Medical Center: Tendonitis


