What is Achilles tendinopathy?
The Achilles tendon connects the heel bone to the calf muscle. Achilles tendonitis is the inflammation of this tissue, usually due to overuse and excessive chronic stress on the tendon structure (Cleveland Clinic, 2021). Achilles tendon injuries are a common condition in runners; when an individual runs, calf muscles are used to help raise you up on your toes; as time goes on, this repetitive motion, combined with not giving your body enough rest, can cause painful inflammation.
The precise cause of tendonitis remain unclear, although it is more commonly connected to athletes, it still occurs in people who do not practice sports. It is shown that a lack of flexibility or a stiff Achilles tendon can increase the risk of injuries, with the biggest cause leading to excessive overburdening of the tendon (Clain & Baxter, 1992).
Achilles tendinopathy can be described as mid-portion or insertional tendinopathy, depending on the location (Opdam et al., 2021). Tendon pain in the middle portion region can be one-sided or over the belly of the tendon itself. The focus of this handout is on this mid-portion. This occurs when the fibers in the middle of the tendon start to thicken, swell, and break down, typically affecting those who are more active (Cleveland Clinic, 2021).










