Achilles Tendonitis

Achilles tendonitis causes pain, stiffness and sometimes swelling at the back of the heel or just above it, where the calf muscles attach to the heel bone through the Achilles tendon. It’s often worst first thing in the morning or at the start of exercise. It usually develops when the tendon is overloaded, for example by a sudden increase in running, hill training, tight calf muscles or the foot rolling inward as you walk. Most cases improve with rest, gradual strengthening exercises and the right footwear. This guide explains the causes and treatments in detail, and our insoles for Achilles tendonitis show how a stable heel cup and arch support reduce the strain on the tendon.