What is myasthenia?

Tendons are the parts that connect human muscles and bones. They are very tough and can withstand forces dozens or hundreds of times that of muscles. They are a very important part of human movement. Tendonitis is the most common problem with tendons. Because tendons connect muscles and bones, and the intensity of daily exercise is high, they are prone to injuries and lesions over time, which is tendonitis. This article discusses tendonitis, and the editor will explain it in detail below.

Introduction to Tendonitis

Tendons are strong, fibrous connective tissues that connect bones to muscles. Tendonitis usually refers to degenerative lesions of tendon collagen fibers caused by overuse of muscle fibers and repeated strong stretching. In addition to affecting the tendon itself, it can also affect the tendon sheath. In the past, tendinitis was often used in diagnosis, but in fact it is not a single inflammation. In most cases, it is often accompanied by degeneration of the collagen tissue of the affected tendon, so it is now commonly called tendinopathy. The most common chronic conditions associated with sports are Achilles tendinopathy, patellar tendinopathy, quadriceps and hamstring tendinopathy, rotator cuff tendinopathy, and “tennis elbow” lateral epicondylitis.

Causes

It is caused by overuse of muscle fibers and repeated strong stretching, and is the result of the interaction of endogenous and exogenous factors. Endogenous factors include body-related factors such as poor alignment and poor muscle strength. Exogenous factors include training errors, poor equipment and skills, and venue changes. The interaction of extrinsic factors may also lead to the development of tendinopathy. External factors include: training errors such as distance, intensity, slope movement, technique and fatigue, training venue, etc., which play an important role in acute injuries.

Clinical symptoms

Tenderness in or near joints, especially around the shoulder or wrist or Achilles tendinitis or on the outside of the elbow (tennis elbow), numbness or tingling, and painful joint stiffness that limits movement of the affected joint. Occasionally, there is mild swelling in the joint, persistent pain, and tendon pain that persists after a recurrence of the original injury or recurs long afterward. If the pain does not improve after 7 to 10 days and is severe and accompanied by swelling, there may be a tendon rupture and immediate treatment is required. Avoid developing into chronic tendinitis or complications such as bursitis, wrist syndrome or phlebitis.