Achilles tendon tendinopathy is one of the most frequent injuries in running sports. The load will be a key element when it comes to an injury, as it happens in other tendinous structures. Overload, as well as an inadequate load adaptation, lack of load or sedentary life, will be risk factors to consider in this kind of injuries. The Achilles tendon, just like other tendons, has the following main functions: • transmission of power generated during muscle contraction. • and…