Dealing with Achilles pain isn’t abnormal for runners, but it can become severe if not properly dealt with. While the cause of Achilles tendinopathy – a term used to describe any problem with a tendon – is not fully understood, it usually occurs when your tendon is unable to adapt to the strain being placed on it. For example, when the calf muscles are overloaded.

People who up their distance too soon in training or do a lot of hill running are at higher risk of developing Achilles tendinopathy, but any form of overloading can cause trouble.

Symptoms of Achilles tendinopathy include pain and swelling in the heel and along the length of the tendon at the back of your ankle, as well as stiffness in the morning.

And when it comes to prevention? Stocks recommends paying attention to your calf. “Prevention exercises such as calf strengthening (heel raises under load and leg press exercises) can help to build tolerance and increase capacity to meet the demand of current running activity.”

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