(Achilles Tendonitis; Achilles Tendinosis)
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.
Tendinopathy is generally caused by overuse of a muscle-tendon unit. Over time, the strain on the tendon causes structural changes within the tendon.
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
Factors that may 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
- Increased age—normal wear and tear can make the tendon more likely to become injured
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
- Pain along the tendon during and/or after running
- Swelling in the area of the Achilles tendon
- Pain at the back of the ankle
You will be asked about your symptoms and exercise habits. A physical exam will be done. A diagnosis will be made based on the exam and history.
Images of the bones and tendons may be taken. This can be done with:
Tendinopathy and the associated pain may take months to resolve. It can be frustrating, but it is important to follow through with the advised treatment.
Rest and Ice
Rest and ice are the first steps. Take a break from any activity that causes pain. Switch to activities that do not put stress on the tendon. Avoid uphill and irregular surfaces. Swimming is a good option. When the pain has gone, gradually increase your activity levels.
Place ice or an ice pack on the area for 15-20 minutes at a time. This can help the first few days after the injury. It may also help after activity, if you have activity-related pain.
Foot and Ankle Support
You may be advised to wear a shoe insert. It will place your foot in the correct position for walking and running.
Taping your ankle during activity may also help. Talk to your doctor or a physical therapist before using this option. They can show you the proper way to wrap your foot.
More severe or recurring injuries may need physical therapy. Therapy may include:
- Strengthening exercises that focus on the calf muscles
- Balance activities
To decrease your chances of getting Achilles tendonitis:
- Wear appropriate footwear for your sport.
Do not use shoes beyond the advised 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.
American College of Sports Medicine
OrthoInfo.org - American Academy of Orthopaedic Surgeons
Canadian Orthopaedic Association
Canadian Orthopaedic Foundation
Achilles tendinopathy. EBSCO DynaMed website. Available at: http://www.ebscohost.com/dynamed. Updated July 9, 2013. Accessed February 28, 2014.
Achilles tendinitis. American Academy of Orthopaedic Surgeons Ortho Info website. Available at: http://orthoinfo.aaos.org/topic.cfm?topic=A00147. Updated June 2010. Accessed February 28, 2014.
Common disorders of the achilles tendon. American College of Foot and Ankle Surgeons Foot Health Facts website. Available at: http://www.foothealthfacts.org/footankleinfo/achilles-tendon.htm. Accessed February 28, 2014.
de Jonge S, van den Berg C, de Vos RJ, et al. Incidence of midportion Achilles tendinopathy in the general population. Br J Sports Med. 2011;45(13):1026-1028.
Irwin TA. Current concepts review: insertional achilles tendinopathy. Foot Ankle Int. 2010;31(10):933-939.
10/26/2010 DynaMed's Systematic Literature Surveillance http://www.ebscohost.com/dynamed: Massey T, Derry S, Moore R, McQuay H. Topical NSAIDs for acute pain in adults. Cochrane Database Syst Rev. 2010;(6):CD007402.
Last reviewed February 2014 by Teresa Briedwell, PT, DPT
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.