... the increased clinical use of this therapy, larger controlled studies will be published to better understand its effectiveness and clinical use. A basic understanding of the components within ... to overuse injuries resulting in micro tears of the tissue. These types of injuries are difficult to heal and are a risk for re-injury.A recent study published in the American Journal of Sports ... injury (Sampson, S., Gerhardt, M., & Mandelbaum, B, July, 2008).PRP Therapy in Chronic Tendon InjuriesThere is an increase in the use of PRP therapy for chronic tendon injuries including...