Tight ankles worsen knee pain? new study investigates
NCT ID NCT05285007
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.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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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
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About 60 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Mar 2022
- Expected to finish
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May 2027
An estimate. End dates often move.
- Lead sponsor
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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
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18 to 59 years
- Sex
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Female participants only
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
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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
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Loma Linda University
RECRUITINGLoma Linda, California, 92350, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Knee pain relief: targeted exercises show promise in small trial
- Simple hip and ankle moves may ease soccer Players' knee pain
- Power up your knees: new exercise program aims to beat chronic kneecap pain
- Vibration therapy tested for Post-ACL knee pain relief
- Mindful miles: could meditation while running ease knee pain?