Achilles' tendonitis. An overview and reconditioning model.

Achilles' tendon injuries are common in runners. The muscle tendon complex primarily functions eccentrically, and it is during this phase that failure occurs. Reconditioning programs that incorporate eccentric strengthening and plyometric and other neuromuscular strengthening theories with a concerted specific gradual activity challenge can be successful. To optimize return to activity, more work needs to be done to identify the amount of stress (i.e., exercise) that can be tolerated at a specific phase of the inflammatory process.