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Could short bursts of exercise ease stubborn shoulder pain?

NCT ID NCT07275164

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 explores whether high-intensity interval training (HIIT) is a feasible and acceptable option for people with long-term shoulder pain, such as rotator cuff issues or frozen shoulder. Researchers will enroll 15 people with shoulder pain and 15 without, measuring inflammation, blood sugar, and pain sensitivity. Participants with shoulder pain will do one 20-minute HIIT session on a stationary bike. The goal is to see if this approach is practical and safe, and whether it might reduce inflammation linked to persistent pain.

What this could mean

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

Active substance
High-intensity interval training (HIIT) on a cycle ergometer
What this could lead to
If successful, this could pave the way for larger studies exploring HIIT as a treatment for chronic shoulder pain by targeting inflammation and nervous system function.
What could go wrong
This is a very small feasibility study with only 15 participants, so results may not apply broadly. It is not designed to prove effectiveness, only to see if the approach is practical and acceptable.

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 30 people

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

Started

Dec 2025

Expected to finish

Oct 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 years and older

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: Shoulder pain group * Shoulder pain \> 3 months * Diagnosis of rotator cuff related shoulder pain or frozen shoulder * Understanding Dutch in speaking and writing. Control group o Understanding Dutch in speaking and writing Exclusion Criteria: Shoulder pain group * \<18 years * Shoulder surgery or trauma in past year * Neurological, cancer, or neuromuscular disease * Osteoarthritis, cervical or AC joint pathology * Heavy physical exertion \<48h before testing Control group * \<18 years * recent or recurrent neck/shoulder pain * systemic or neurological disease * psychiatric disorders * pregnancy/breastfeeding * pain medication \<48h before test

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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.

  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

  • Universiteit Antwerpen

    RECRUITING

    Wilrijk, 2610, Belgium

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