Tight ankles worsen knee pain? new study investigates

NCT ID NCT05285007

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Recruitment status, easiest to join first

Recruiting now This study
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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
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 Results may not be published yet.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)

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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

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Status unknown
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First seen Jun 27, 2026 · Last updated Aug 21, 2026 · Updated 2 times

Summary

This study looks at how limited ankle movement affects a single-leg squat in people with long-term knee pain (patellofemoral pain). Researchers will measure ankle flexibility and pain during daily activities. The goal is to better understand the link between ankle tightness and knee function.

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

About 60 people

The number the study aims to enrol. It can still change while the study runs.

Started

Mar 2022

Expected to finish

May 2027

An estimate. End dates often move.

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 59 years

Sex

Female participants only

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: * History of active Patellofemoral Pain for at least 6 months * No clinic based therapeutic interventions for a 6-month period prior to testing * Females aged 18-59 years' old * Limited ankle dorsiflexion as noted by \<45degs using the weight bearing lunge test Exclusion Criteria: * History of musculoskeletal surgery or fractures on the tested leg or lumbar spine that could affect their biomechanics during the study * History of soft tissue or skeletal abnormalities in the tested limb * Current knee effusion * Resting pain greater than 5/10

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

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

How to take part

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  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

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  3. A doctor treating you

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Contacts and locations

Locations

  • Loma Linda University

    RECRUITING

    Loma Linda, California, 92350, United States

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