RCT of Home-based vs Formal Physical Therapy for Treatment of New Onset Non-insertional Achilles Tendinopathy

Inclusion Criteria: * Must be 18 years of age * Must have a new diagnosis of Achilles tendinopathy that has presented with pain, thickening and tenderness at the mid substance of the Achilles tendon * Symptoms present for at least 6 weeks Exclusion Criteria: * Patients with insertional Achilles pain or tenderness or concomitant plantar foot pain * Patients who have had prior treatment with home eccentric stretching or physical therapy * Patients who have prior diagnosis and treatment for Achilles tendinopathy * Patients with history of injection (corticosteroid or sclerosing agents) to the Achilles tendon * Patients with inflammatory arthritis * Recent fluoroquinolone antibiotics (these agents are known to alter Achilles tendon physiology) * Patients who have had prior foot or ankle surgery * Individuals that do not speak English * Bilateral disease * Pregnant women