Avoid chronic issues by strengthening your tendons and making them more resilient. Despite its broad width and significant length, runners injure their Achilles tendons with surprising regularity. In a recent study of 69 military cadets participating in a six-week basic training program (which included distance running), 10 of the 69 trainees suffered an Achilles tendon overuse injury. The prevalence of this injury is easy to understand when you consider the tremendous strain