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Can a stiffer prosthetic foot help you keep your balance?

NCT ID NCT06711588

Symptom relief Sponsor: Seattle Institute for Biomedical and Clinical Research Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Aug 07, 2026 · Updated 1 time

Summary

This study tests whether changing the stiffness of a prosthetic foot can improve balance for people with below-knee amputations. Twenty participants will try three different stiffness levels while walking, turning, and navigating ramps and uneven ground. The goal is to find the stiffness that best helps with everyday activities.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
prosthetic foot with adjustable stiffness
What this could lead to
If successful, this could help identify the best prosthetic foot stiffness to improve balance and reduce fall risk for people with below-knee amputations.
What could go wrong
This is a small early-stage study with only 20 participants, so results may not apply to everyone. The intervention is a device, not a drug, and benefits may be modest.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

21 people

The number who actually took part.

Started

Dec 2024

Finished

Jul 2026

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 70 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Unilateral transtibial (below-knee) amputation * Been fit with a prosthesis and used it for at least 6 months * Wear the prosthesis for 4 or more hours on average per day * Be at least one-year post-amputation * Able to walk on a treadmill Exclusion Criteria: * Presence of disorder, pain, or injury other than amputation that interferes with gait * Current skin irritation or injury on residual limb * Use of an assistive device for walking (cane, walker, etc.)

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Lower limb amputation below knee

Contacts and locations

Locations

  • VA Puget Sound Healthcare System

    Seattle, Washington, 98108, United States

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