Definition

Tendons connect muscle to bone and often connect near a joint. Tendinopathy is an injury to the tendon. It can cause pain and swelling and makes it difficult to move. Tendinopathy may be:

• Tendonitis—inflammation of the tendon
• Tendinosis—tiny tears in the tendon with no significant inflammation

The achilles tendon connects the calf muscle to the heel bone. An achilles tendinopathy is pain in this tendon.

Achilles Tendonitis Copyright © Nucleus Medical Media, Inc.

Causes

Tendinopathy is generally caused by overuse of a muscle-tendon unit. Over time, the strain on the tendon causes structural changes within the tendon itself.

Overuse of the Achilles tendon can occur with activities such as:

• Increasing your speed or running long distances too quickly
• Suddenly adding strenuous hills or stair climbing to your exercise routine
• Doing too much too soon after taking time away from exercising
• A sudden or violent contraction of the calf muscles, such as during an all-out sprint
• Running too much
• Lack of flexibility of the calf muscles

Risk Factors    TOP

Factors that increase your risk of getting Achilles tendinopathy include:

• Improper or badly worn footwear
• Inflexibility of the calf muscles
• An improper training program—such as increasing intensity too quickly
• Increasing age—normal wear and tear can make the tendon more vulnerable to injury

Symptoms    TOP

Symptoms of tendinopathy may include:

• Tenderness—usually just above the heel bone and often more noticeable in the morning
• Stiffness that gradually eases as the tendon is warmed-up
• Pain after activity that gradually worsens
• Radiating or localized pain along the tendon during and/or after running
• Swelling in the area of the achilles tendon
• Pain at the back of the ankle

Diagnosis    TOP

The doctor will ask about your symptoms and exercise habits. A physical exam will be done. Your doctor will likely make a diagnosis based on the exam and history.

Further test may be ordered if the injury is severe or is not healing as expected. Images of the bones and tendons may be taken with:

• X-rays
• Ultrasound
• MRI scan

Treatment    TOP

Tendinopathy and the associated pain may take months to resolve. It can be frustrating but it is important to follow through with recommended treatment.

If you are diagnosed with this condition, follow your doctor's instructions.

Prevention    TOP

To decrease your chances of getting achilles tendonitis:

• Wear appropriate footwear for your sport.
• Do not use shoes beyond the recommended duration. This will depend on:
  • How frequently you exercise
  • The surface on which you exercise
  • The conditions in which you exercise
• Gradually add hill work, stairs, speed, and distance to your routine.
• Stretch and strengthen the calf muscles regularly.