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Workout your good arm to heal the bad one? new study tests the idea

NCT ID NCT07628361

Knowledge-focused Sponsor: Universidad Nacional Andres Bello Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 looks at whether doing resistance training with your uninjured arm while your injured shoulder is in a sling can help you recover faster. Researchers will compare two types of exercise (eccentric and concentric) in 16 people with an AC joint injury. The goal is to see if this 'cross-education' approach can preserve muscle strength and improve function without any direct treatment to the injured side.

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 16 people

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

Started

Jan 2026

Expected to finish

Jul 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 36 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: * Men and women aged 18 to 36 years. * Diagnosis of acute acromioclavicular joint injury confirmed by an orthopedic surgeon. * Physician-prescribed upper-limb immobilization using a sling for approximately 2 to 4 weeks, with or without surgical repair. * Ability to understand study procedures and provide written informed consent. * Medical clearance to participate in the rehabilitation and resistance training program. Exclusion Criteria: * Previous surgery or severe musculoskeletal injury affecting either upper limb within the previous 12 months. * Neurological disorders affecting motor function or neuromuscular performance. * Contraindications to transcranial magnetic stimulation according to established safety guidelines. * Current participation in another clinical trial or structured upper-limb rehabilitation program. * Cognitive impairment or inability to comply with study procedures. * Pregnancy. * Any medical condition that, in the opinion of the investigators, may compromise participant safety or study participation.

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As listed by the trial registrant

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

Acromioclavicular joint dislocation Acromioclavicular joint injury

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

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

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. 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

  • Clínica Indisa

    RECRUITING

    Santiago, Providencia, Chile