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Comparison of Various Prosthetic Foot-Ankle Mechanisms
Sponsor: Massachusetts Institute of Technology
Summary
In summary, subjects will be asked to wear a number of sensors and use different ankle-foot prostheses in place of their customary prosthesis. Data will be collected from the wearable sensors, VICON motion capture system, video cameras, and force sensors in the ground as they walk on level-ground, on a treadmill, and on stairs. The controller of any powered prosthesis will be electronically adjusted between trials or while the subject walks to determine how their gait changes in response to these changes. Trials will also be conducted with a standard passive prosthesis that would be prescribed for a person of similar height and weight.
Key Details
Gender
All
Age Range
18 Years - 65 Years
Study Type
INTERVENTIONAL
Enrollment
10
Start Date
2023-07-28
Completion Date
2026-04-01
Last Updated
2026-08-20
Healthy Volunteers
No
Conditions
Interventions
MIT Variable Stiffness Prosthesis v1
Proprietary electronically-controlled prosthesis that can vary its effective stiffness.
MIT Variable Equilibrium Angle Prosthesis v1
Proprietary manually-controlled prosthesis that can vary its effective ankle equilibrium angle.
MIT Sliding Beam Passive Prosthesis
Proprietary fixed-stiffness passive foot-ankle prosthesis.
Ossur Pro-Flex XC
Commercially-available passive fixed-stiffness foot-ankle prosthesis by Ossur.
Blatchford Elan Variable-Dampening Prosthesis
Commercially-available electronically-controlled prosthesis that can vary its effective dampening.
Ossur Proprio Variable Angle Prosthesis
Commercially available variable ankle angle prosthesis by Ossur.
MIT Variable Stiffness Prosthesis v2
Second generation a proprietary electronically-controlled prosthesis that can vary its effective stiffness.
MIT Variable Equilibrium Angle Prosthesis v2
Second generation prototype prosthesis that can vary its effective ankle equilibrium angle.
Locations (2)
A Step Ahead Prosthetics
Burlington, Massachusetts, United States
MIT Media Laboratory
Cambridge, Massachusetts, United States