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Automatic Prosthetic Foot Stiffness Modulation to Improve Balance
Sponsor: Seattle Institute for Biomedical and Clinical Research
Summary
The goal of this clinical trial is to identify prosthesis stiffness that optimizes balance control in individuals with below knee amputations. The main question this clinical trial will answer is: • Is there an optimal stiffness that improves balance control for specific ambulatory activities and users? Participants will wear a novel prosthesis assembled with three prosthetic feet with a range of stiffness levels: each individual's clinically-prescribed foot stiffness and ± two stiffness categories. While wearing the study prostheses, participants will perform nine ambulatory activities of daily living (walking at different speeds, turning, ramp ascent/descent, while carrying a load, and while walking on uneven terrain).
Official title: Automatic Activity-Dependent and Phase-Varying Prosthetic Foot Stiffness Modulation to Improve Balance Control in Individuals With Lower-Limb Amputations
Key Details
Gender
All
Age Range
18 Years - 70 Years
Study Type
INTERVENTIONAL
Enrollment
20
Start Date
2024-12-19
Completion Date
2026-06
Last Updated
2025-12-17
Healthy Volunteers
No
Conditions
Interventions
As-prescribed stiffness
A novel prosthesis that includes a low-profile prosthetic foot whose stiffness category is determined by the person's body weight and activity level (standard clinical practice).
Two categories stiffer than the as-prescribed stiffness
A novel prosthesis that includes a low-profile prosthetic foot whose stiffness category is two categories stiffer than the as-prescribed stiffness.
Two categories less stiff than the as-prescribed stiffness
A novel prosthesis that includes a low-profile prosthetic foot whose stiffness category is two categories less stiff than the as-prescribed stiffness.
Locations (1)
VA Puget Sound Healthcare System
Seattle, Washington, United States