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Scientists use 3D echo to peek inside Athletes' hearts

NCT ID NCT07363993

Knowledge-focused Sponsor: University of Avignon 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This observational study uses 3D echocardiography to compare heart shape, blood flow, and function between 80 endurance athletes and 80 sedentary people. Researchers aim to understand how long-term exercise remodels the heart's structure and improves its performance. Participants must be healthy adults aged 18-45 with no heart disease or major risk factors.

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.

Participants

About 160 people

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

Started

Dec 2025

Expected to finish

Aug 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.

Who is studied

Participants in the ENT group will be recruited: * At Montpellier University Hospital, in the cardiology department of Dr Hédon, during a follow-up visit. * At various national training centers of the French Triathlon Federation and the French Athletics Federation; * During local long-distance events (e.g., long-distance triathlons, ultramarathons), with assessments carried out at the time of race bib collection. Healthy participants will be recruited in parallel In Avignon and the surrounding area. Some participants from the CONT or ENT groups will also be recruited in the cardiology department of Dr Hédon at Montpellier University Hospital during a follow-up visit, for example as part of systematic cardiovascular screening. These participants will have undergone a preventive cardiology consultation that revealed no abnormalities or pathology. If these participants meet all inclusion criteria, they may then be included in the study.

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 for athletes: \- Athlete practicing at least 10 hours of endurance training per week for a minimum of 5 years. Inclusion criteria for controls: \- Individual not training in more than 3 hours of physical activity per week. Exclusion Criteria for both groups: * History of known heart disease; * Current cardiac rhythm disorder; * Individual with one or more cardiovascular risk factors (smoking, diabetes, hypertension, body mass index \> 30 kg/m²); * Individual in a period of relative exclusion in relation to another protocol, or for whom the annual maximum compensation amount of €4,500 has been reached; * Individual not affiliated with a social security system, or not benefiting from such a system; * Pregnant or breastfeeding woman; patient unable to give informed consent; protected adults; vulnerable persons; * Individual deprived of liberty by judicial or administrative decision. Exclusion criteria for athletes: \- Use of substances listed on the prohibited substances list of the French Anti-Doping Agency

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Conditions

The condition(s) this trial relates to.

hypertrophic cardiomyopathy due to intensive athletic training

As listed by the trial registrant

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

Athlete heart

How to take part

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

  1. The places running it

    2 sites. 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

  • CHU Montpellier

    RECRUITING

    Montpellier, 34000, France

  • LaPEC

    RECRUITING

    Avignon, 84000, France