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Carbon fiber braces could ease ankle strain, early study suggests

NCT ID NCT04800510

Knowledge-focused Sponsor: University of Iowa 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026

Summary

This study tested custom carbon fiber ankle braces in 9 healthy adults to see how they change forces across the ankle joint. Researchers varied the brace design and used a computer model to estimate joint contact stress. The goal was to improve the model and understand how brace design might reduce ankle cartilage stress.

What this could mean

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

Active substance
Carbon Fiber Custom Dynamic Orthosis (ankle brace)
What this could lead to
If successful, this could help design better braces that reduce ankle joint stress, potentially aiding people with ankle arthritis or injury.
What could go wrong
This was a very small study (9 people) in healthy adults, so results may not apply to patients with ankle problems. It focused on modeling, not treatment.

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

9 people

The number who actually took part.

Started

Apr 2021

Finished

Jun 2022

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 50 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: * Between the ages of 18 and 50 * Shoe size between women's 8 and 13.5 or men's 6.5 and 12 * Healthy individuals without a current complaint of lower extremity pain, spine pain, or medical or neuromusculoskeletal disorders that have limited participation in work or exercise in the last 6 months * Full active range of motion of the bilateral lower extremities and spine * Ability to hop without pain * Ability to perform a full squat without pain * Ability to read and write in English and provide written informed consent Exclusion Criteria: * Diagnosed moderate or severe brain injury * Prior lower extremity injury resulting in surgery or limiting function for greater than 6 weeks * Diagnosis of a physical or psychological condition that would preclude testing (e.g. cardiac condition, clotting disorder, pulmonary condition) * Visual or hearing impairment that would interfere with instructions given during testing * Require an assistive device * Wounds to the foot or calf that would prevent CDO use * BMI greater than 35 * Pregnancy - Per participant self-report. Due to the expected small number of pregnant individuals and resulting inability to account for its effect on resulting outcomes, participants will be withdrawn from the study

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Conditions

The condition(s) this trial relates to.

adult acute lymphoblastic leukemia Precursor Cell Lymphoblastic Leukemia-Lymphoma

As listed by the trial registrant

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

Adult ALL Healthy

Contacts and locations

Locations

  • The University of Iowa

    Iowa City, Iowa, 52242, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.