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The Effects of Footplate Stiffness on Foot Loading Within Carbon Fiber Custom Dynamic Orthoses
Who can join
Ages 18 to 65 · All sexes · Healthy volunteers welcome
Full eligibility criteria
Inclusion Criteria * Between the ages of 18 and 65 * Healthy without current complaint of lower extremity pain, spine pain, open wounds or active infections, or medical or neuromusculoskeletal disorders that have limited their participation in work or exercise in the last 6 months * Able to hop without pain * Able to perform a full squat without pain * Ability to read and write in English and provide written informed consent * Ability to fit in a generic sized CDO Exclusion Criteria * Diagnosed with a moderate or severe brain injury * Lower extremity injury resulting in surgery or limiting function for greater than 6 weeks * Injuries that would limit performance in this study * Diagnosed with a physical or psychological condition that would preclude functional testing (e.g. cardiac condition, clotting disorder, pulmonary condition) * Visual or hearing impairments that limit walking ability or limit the ability to comply with instructions given during testing * Require use of an assistive device * Unhealed wounds (cuts/abrasions) that would prevent AFO use * BMI \> 40 * Pregnancy
About the study
Carbon fiber custom dynamic orthoses (CDOs) improve function, reduce pain, and offload the foot and ankle. CDOs include a proximal cuff that wraps around the leg just below the knee, a posterior carbon fiber strut that bends to store and return energy, and a semi-rigid carbon fiber footplate. The purpose of this study is to determine the effect of CDO use and CDO footplate stiffness on foot loading, limb mechanics, pain, and comfort.
What is being tested
- Carbon Fiber Custom Dynamic Orthosis (device)
- Carbon Fiber Footplate (device)
Sponsor: Jason Wilken · Participants: 20 · Started: Dec 13, 2025
Contact the study team
- Jason M Wilken, PT, PhD · Phone: +1 319 3356857
- Kirsten M Anderson, PhD · Phone: 3193530431
Official record on ClinicalTrials.gov — NCT07312032
Locations in the U.S.
| Iowa | University of Iowa, Iowa City |
Conditions
From ClinicalTrials.gov, data retrieved Sep 30, 2026. Each study sets its own eligibility; the study team decides who can join.