Clinical Trial to Evaluate the Adjuvant Effect of Shock Wave Therapy in the Insertional Achilles Tendinopathy

Inclusion Criteria: * Older than 18 and younger than 65 years of age, both genders; * Pain symptoms in the calcaneus tendon insertion region over the last three months; * Clinical diagnosis: presence of pain at palpation of the tendinous insertion region in the calcaneus bone (and up to 2cm close to this region) and the occurrence of increase of the region´s volume; * Indication of tendinopathy in the Ultra Sound done at the previous health center or by a certified doctor; * Lateral X-ray view of the calcaneus, showing any of the associated conditions (Haglund, enthesophyte or intra-substantial calcification). Exclusion Criteria: * Previous surgery involving the affected foot or ankle; History or documented evidence of autoimmune or peripheral vascular diseases; * History or documented evidence of peripheral neuropathy (nervous compression syndrome, tarsal tunnel syndrome). * History or documented evidence of systemic inflammatory disease a (rheumatoid arthritis, spondylitis, Reiter Syndrome, etc.) * History or documented evidence of loss of sensibility in the foot or ankle; * Non-Insertional or mixed tendinopathy (insertional and non-insertional); * Previous infiltration in the affected tendon over the six months preceding the initial assessment; * Beginning of the present pain, due to a trauma; * Gross or congenital deformity overweighting the triceps sural muscle, being the main aetiology of the present disease. * Pregnancy; * Any condition that represents a contraindic…