Clinical Research Directory

Inclusion Criteria: * Between the ages of 18 and 65 * 2 or more years from a traumatic injury below the knee * Ability to be fit with an orthosis * Any of the following: * Weakness of ankle plantarflexors (\<4/5 on manual muscle test) * Limited pain-free ankle motion (dorsiflexion (DF) \<10° or plantarflexion (PF) \<20°) * Mechanical pain with loading to hindfoot/midfoot (\>=4/10 Numerical pain rating scale) * Fusion or candidate for fusion of the ankle or hindfoot * Candidate for amputation secondary to ankle/foot injury and impairment Exclusion Criteria: * Pain greater than 8/10 at rest * Ankle weakness or spasticity as a result of spinal cord injury or central nervous system pathology * Use of an orthosis including the knee * Non-ambulatory * Surgery on study limb anticipated in next 4 months * Medical or psychological conditions that would influence functional testing (e.g., severe traumatic brain injury, stroke, heart disease, vestibular disorder) * Neurologic, musculoskeletal, or other conditions limiting function of the contralateral extremity * Uncorrected visual or hearing impairments * Pregnancy * Non-English speaking * BMI \> 40