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Achilles tendinopathy is an irritation of the Achilles tendon. It is one of the most common types of pain felt behind the heel and up the back of the ankle when walking or running. It affects both active and inactive people. Around 24% of athletes develop the condition, and an estimated 50% of runners will experience Achilles tendon pain in their running careers.

Achilles tendinopathy can result in a limited ability to walk, climb stairs, or participate in recreational activities. Physical therapists help people with Achilles tendinopathy reduce pain and restore strength, flexibility, and mobility.

Physical therapists are movement experts. They improve quality of life through hands-on care, patient education, and prescribed movement. You can contact a physical therapist directly for an evaluation. To find a physical therapist in your area, visit Find a PT.

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What Is Achilles Tendinopathy?

Achilles tendinopathy is an irritation of the Achilles tendon, a thick band of tissue along the back of the lower leg connecting the calf muscles to the heel. The term "tendinopathy" refers to any problem with a tendon, either short- or long-term. The Achilles tendon transmits force from the calf muscles down to the foot when a person pushes the foot off the ground (such as when running or jumping). It also helps control the position of the ankle when the foot touches back down on the ground.

Achilles tendinopathy results when the demand on the Achilles tendon is greater than its ability to function. The condition can occur after a single incident (acute injury) or after repetitive irritation or "microtrauma" (chronic injury). Most often, Achilles tendon pain is the result of repetitive trauma that can result in chronic Achilles tendinopathy — a gradual breakdown of the tissue. The condition is most often treated with physical therapy.

Achilles tendinopathy is linked to several different factors, including:

  • Calf muscle tightness.
  • Calf muscle weakness.
  • Abnormal foot structure.
  • Abnormal foot mechanics.
  • Improper footwear.
  • A change in an exercise routine or sports activity.
  • Obesity.

Pain can be present at any point along the tendon. The most common area to feel tenderness is just above the heel. Pain also may be present where the tendon meets the heel.

Illustration of achilles tendinopathy

How Does It Feel?

With Achilles tendinopathy, you may experience:

  • Tenderness in the heel or higher up in the Achilles tendon when pressed.
  • Pain and stiffness with walking that is at its worst with the first few steps
  • Tightness in the calf.
  • Swelling in the back of the ankle.

How Is It Diagnosed?

Your physical therapist will review your health history and complete a thorough exam of your heel, ankle, and calf. They will assess your foot posture, strength, flexibility, and movement. This process may include watching you stand in a relaxed stance, walk, squat, step onto a stair, or do a heel raise. The motion and strength in other parts of your leg also will be assessed.

Your physical therapist may also ask questions about your daily activities, exercise regimens, and footwear. This will help them to identify other contributing factors to your condition.

Imaging techniques, such as X-ray or MRI, are often not needed to diagnose Achilles tendinopathy. Although it is unlikely that you will need surgery, your physical therapist will consult with other health care professionals, such as an orthopedist, to determine the best plan of treatment for your specific condition if it does not respond to conservative care.

How Can a Physical Therapist Help?

Physical therapy promotes recovery from Achilles tendinopathy by addressing issues such as pain or swelling of the affected area, and any lack of strength, flexibility, or body control. You and your physical therapist will work together to develop a personalized treatment program to help you achieve your specific goals in the safest and most effective way possible. Your treatment may include:

Education. Your physical therapist will work with you to identify any external factors causing your pain, such as faulty footwear or specific movements or exercises. Your physical therapist will assess your footwear and recommend improvements, and design an exercise program to help ensure a pain-free return to your desired activities.

Pain management. Many pain-relief strategies may be implemented, such as applying ice to the area, putting the affected leg in a brace, using heel lifts, or using therapies such as iontophoresis (a medicated patch placed on the skin that is electrically charged and used to decrease pain and inflammation), or therapeutic ultrasound. These strategies can reduce the need for pain medication, including opioids.

Manual therapy. Your physical therapist may apply hands-on treatments to gently move your muscles and joints in order to improve their motion and function. These techniques often address areas that are difficult to treat on your own.

Range-of-motion treatments. Your ankle, foot, or knee joint may be moving improperly, causing increased strain on the Achilles tendon. Self-stretching and manual therapy techniques (massage and movement) applied to the lower body to help restore and normalize motion in the foot, ankle, knee, and hip can decrease this tension and restore full range of motion.

Gentle exercise. Loading of the tendon (applying weight or resistance to it) through exercise is beneficial for recovery from Achilles tendinopathy. You may begin by performing gentle strengthening exercises in a seated position (eg, pushing and pulling on a resistive band with your foot). You then may advance to exercises in a standing position (eg, standing heel raises).

Muscle-strengthening exercises. Muscle weakness or imbalance can result in excessive strain on the Achilles tendon. Based on your specific condition, your physical therapist will design an individualized, progressive, lower-extremity resistance program for you to help correct any weakness-associated movement errors that may be contributing to your pain.

Functional training. Once your pain eases and your strength and motion improve, you will need to safely transition back into more demanding activities. To minimize the tension placed on the Achilles tendon and your risk of repeated injury, it is important to teach your body safe, controlled movements. Based on your goals and movement assessment, your physical therapist will create a series of activities that will help you learn how to use and move your body correctly to safely perform the tasks required to achieve your goals.

If additional interventions are needed, such as injections, minimally invasive tendon procedures, or surgery, your physical therapist will work with you after your procedure to help you regain motion, strength, and function.

Can This Injury or Condition Be Prevented?

Maintaining appropriate lower-extremity mobility and muscular strength, and paying particular attention to your exercise routine—especially changes in an exercise surface, the volume of exercises performed, and your footwear—are the best methods for preventing Achilles tendinopathy.

When you have experienced an injury, your physical therapist will help guide you through a process that will progressively reintegrate more demanding activities into your routine without aggravating your Achilles tendon. Keep in mind that returning to high-level activities too soon after injury can lead to another episode of pain.

What Kind of Physical Therapist Do I Need?

All physical therapists are prepared through education and experience to treat Achilles tendinopathy. However, you may want to consider:

  • A physical therapist who is experienced in treating people with Achilles tendinopathy. Some physical therapists have a practice with an orthopedic or musculoskeletal focus.
  • A physical therapist who is a board-certified orthopaedic clinical specialist or who completed a residency or fellowship in orthopedic or sports physical therapy. This physical therapist has advanced knowledge, experience, and skills that may apply to your condition.

You can find physical therapists who have these and other credentials by using Find a PT, the online tool built by the American Physical Therapy Association to help you search for physical therapists with specific clinical expertise in your geographic area.

General tips when you're looking for a physical therapist (or any other health care provider):

  • Get recommendations from family and friends or from other health care providers.
  • When you contact a physical therapy clinic for an appointment, ask about the physical therapists' experience in helping people who have Achilles tendinopathy.
  • Be prepared to describe your symptoms in as much detail as possible, and say what makes your symptoms worse.

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The American Physical Therapy Association believes that consumers should have access to information that could help them make health care decisions and also prepare them for their visit with their health care provider.

The following articles provide some of the best scientific evidence related to physical therapy treatment of Achilles tendinopathy. The articles report recent research and give an overview of the standards of practice both in the United States and internationally. The article titles are linked either to a PubMed* abstract of the article or to free full text, so that you can read it or print out a copy to bring with you to your health care provider.

Martin RL, Chimenti R, Cuddeford T, et al. Achilles pain, stiffness, and muscle power deficits: midportion Achilles tendinopathy revision 2018. J Orthop Sports Phys Ther. 2018;48:A1–A38. Article Summary in PubMed.

Maffulli N, Longo UG, Loppini M, Denaro V. Current treatment options for tendinopathy. Expert Opin Pharmacother. 2010;11:2177–2186. Article Summary on PubMed.

Jonsson P, Alfredson H, Sunding K, Fahistrom M, Cook J. New regimen for eccentric calf-muscle training in patients with chronic insertional Achilles tendinopathy: results of a pilot study. Br J Sports Med. 2008;42:746–749. Article Summary on PubMed.

Alfredson H, Cook J. A treatment algorithm for managing Achilles tendinopathy: new treatment options. Br J Sports Med. 2007;41:211–216. Article Summary on PubMed.

Maffulli N, Wong J, Almekinders LC. Types and epidemiology of tendinopathy. Clin Sports Med. 2003;22:675–692. Article Summary on PubMed.

*PubMed is a free online resource developed by the National Center for Biotechnology Information (NCBI). PubMed contains millions of citations to biomedical literature, including citations in the National Library of Medicine’s MEDLINE database.

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