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Investigating Auto Adjusting Dynamic AFO
Who can join
Ages 18 and older · All sexes · Healthy volunteers welcome
Full eligibility criteria
Inclusion Criteria (Healthy Volunteers): -able to run continuously for 1 minute Inclusion Criteria (All Other Volunteers) * prescribed an offloading Ankle-Foot Orthosis (AFO) for walking/running * Use prescribed offloading AFO at least 20 hours per week * Prescribed AFO strut length of at least 200 mm * Able to run continuously for 1 minute Exclusion Criteria (Healthy Volunteers): * limited sensation in the lower limbs * use an assistive device Exclusion Criteria (All Other Volunteers): * Unable to ambulate (walk/run) continuously with AFO for at least 1 minute * Unable to sit, stand, or negotiate a step onto lab treadmill
About the study
Offloading Ankle Foot Orthoses (AFOs) are devices designed for people following lower-limb reconstruction to restore mobility by reducing mechanical loading through the injury site and redistributing it proximally. While they perform well for some users, their current form limits full functional potential and may put joints proximal to the injury at risk of long-term damage. This study is directed toward designing and testing a lightweight, variable stiffness, dynamic brace that can adjust in response to user activity.
What is being tested
- Variable Stiffness AFO (device)
Sponsor: University of Washington · Participants: 22 · Started: Nov 30, 2020
Contact the study team
- Joan Sanders, PhD · Phone: 206-221-5872
- Katheryn Allyn, CPO, LPO · Phone: 206-390-0228
Official record on ClinicalTrials.gov — NCT04623853
Locations in the U.S.
| Washington | University of Washington, Dept. of Bioengineering, Seattle |
From ClinicalTrials.gov, data retrieved Nov 15, 2026. Each study sets its own eligibility; the study team decides who can join.