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Simple squat may fix gait after ACL surgery

NCT ID NCT07308431

Symptom relief Sponsor: Peking University Third Hospital 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 This study
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 Results may not be published yet.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)

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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tests whether adding single-leg 20-degree squats to standard physical therapy helps people walk better after anterior cruciate ligament (ACL) reconstruction. The trial will enroll 48 adults aged 18-45 who have ACL surgery scheduled. Researchers will measure knee movement, muscle activity, and strength during walking and squatting to see if the extra exercise makes a difference.

What this could mean

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

Active substance
single-leg 20-degree squat training
What this could lead to
If it works, this could lead to a simple, targeted exercise that helps people walk more normally after ACL surgery.
What could go wrong
This is a small, early-stage trial (48 people) that hasn't started recruiting yet. The exercise is very specific, and results may not apply to everyone or lead to major improvements.

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 48 people

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

Expected to start

Jan 2026

An estimate. Start dates often move.

Expected to finish

Apr 2026

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 45 years

Sex

Anyone

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: * Clinical diagnosis of unilateral Anterior Cruciate Ligament (ACL) rupture. * Aged between 18 and 45 years. * Scheduled for primary unilateral ACL reconstruction at our hospital. * Presence of quadriceps atrophy, defined as the bilateral difference in quadriceps strength is \>10% of the contralateral unaffected limb. * The operated knee has no significant redness, swelling, pain, inflammation, or limitations in range of motion and has essentially restored basic joint mobility. * No or only minor (Grade I) injury to the posterior cruciate ligament, medial collateral ligament, or lateral collateral ligament. Exclusion Criteria: * Severe injury (Grade II or III) to the posterior cruciate ligament, medial collateral ligament, or lateral collateral ligament in the affected knee. * Concomitant severe meniscal tear(s) in the affected knee. * History of significant prior trauma or surgery to the affected knee. * Presence of other knee joint diseases (e.g., osteoarthritis, tumors, rheumatoid arthritis, tuberculosis). * Poor subject compliance or anticipated inability to complete the entire study protocol.Subject withdrawal of informed consent. * Any reason the subject proposes to terminate the study or is unable to complete the trial. * In the investigator's judgment, continued participation would adversely affect the subject's physical condition. * Decision by the Ethics Review Committee to terminate the study.

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Conditions

The condition(s) this trial relates to.

Anterior Cruciate Ligament Injuries

As listed by the trial registrant

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

Anterior cruciate ligament injuries

How to take part

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