Assessing the Tendons With Shear Wave Elastography

The purpose of this study is to utilize Shear Wave Elastography (SWE) to study the viscoelastic properties of tendons to understand the functional differences between normal/asymptomatic and symptomatic tendon states. The study will also assess the degree of tendon healing following standard of care treatment.

Inclusion Criteria for Asymptomatic Volunteers: * Patients presenting at the study location with lower extremity pain without tendon involvement Inclusion Criteria for Symptomatic Volunteers: * Patients presenting at the study location with a clinical diagnosis of tenalgia * Diagnosis of tendinopathy confirmed by ultrasound Exclusion Criteria: * Pregnancy * History of tendinopathy or surgery and morphologic abnormalities * History of systemic, metabolic, endocrine diseases, or psoriasis * History of treatment with corticosteroids, estrogens, long term quinolone antibiotics, and cholesterol drugs