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HIIT workouts tested as a way to boost fitness in young adults with obesity

NCT ID NCT07283406

Disease control Sponsor: Centro Universitario de Tlajomulco, Universidad de Guadalajara 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
Registered, but not yet taking participants.
By invitation only This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 high-intensity interval training (HIIT) can improve heart health and physical fitness in young adults with obesity. Forty participants will do HIIT three times a week for 12 weeks. Researchers will measure changes in fitness, body composition, and blood markers.

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 (exercise program)
What this could lead to
If it works, this could show that HIIT is an effective way to improve heart health and fitness in young adults with obesity.
What could go wrong
This is a small, early-stage study with only 40 participants, so results may not apply to everyone. The exercise program is demanding and may be hard to stick with.

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 40 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 35 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: * Young adults * BMI ≥ 30 kg/m\^2" and \< 40 kg/m\^2 * Signed informed consent form Exclusion Criteria: * Participants who smoke * Clinical diagnosis of hypothyroidism * Clinical diagnosis of type 1 diabetes mellitus * Clinical diagnosis of type 2 diabetes mellitus * Clinical diagnosis of grade 3 obesity * Clinical diagnosis of hypertension * Clinical diagnosis of acute myocardial infarction or angina pectoris * Use of nitrates and calcium channel blockers within 4 days prior to the start of the study * Use of beta-blockers or hypoglycemic agents within 7 days prior to the intervention * Pregnant women * Breastfeeding women * Men consuming more than 40 g of alcohol per day or women consuming more than 20 g per day * Postural and biomechanical disorders (knee, foot, and spine)

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Conditions

The condition(s) this trial relates to.

Obesity obesity disorder Overweight

As listed by the trial registrant

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

Obesity / overweight

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

    The full official record for this study. This one lists no contact details, but it is the first place any would appear.

    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

  • Centro Universitario de Tlajomulco, Universidad de Guadalajara

    Guadalajara, Jalisco, 45650, Mexico

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