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Short bursts, big gains? HIIT may sharpen heart and metabolic health in young men

NCT ID NCT07719296

Disease control Sponsor: High Institute of Sports and Physical Education of Kef 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
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jul 22, 2026 · Last updated Jul 24, 2026 · Updated 2 times

Summary

This trial investigates whether a 9-week high-intensity interval training (HIIT) program can improve cardiorespiratory fitness and metabolic health in healthy male university students aged 19 to 25. Participants are randomly assigned to either the HIIT group or a non-training control group. The study measures changes in blood pressure, cholesterol, triglycerides, insulin resistance, and aerobic capacity to see if HIIT offers meaningful health benefits.

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) program
What this could lead to
If it works, this could point toward a simple exercise strategy for improving heart and metabolic health in young adults.
What could go wrong
This is a small, early trial in healthy male students only, so results may not apply to women, older adults, or people with health conditions. The modest benefits seen may not be clinically significant.

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

29 people

The number who actually took part.

Started

Dec 2025

Finished

Feb 2026

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

19 to 25 years

Sex

Male participants only

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: * Male university students at the High Institute of Sport and Physical Education, Kef, Tunisia. * Aged 19 to 25 years * Provided written informed consent Exclusion Criteria: * Acute or chronic disease contraindicating vigorous physical exercise * Musculoskeletal injury or any other medical condition limiting participation in exercise * Participation in another structured training program within the previous 6 months * Current or recent (within the previous 3 months) use of medications or dietary supplements that could influence the study outcomes

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Conditions

The condition(s) this trial relates to.

Insulin Resistance

As listed by the trial registrant

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

Cardio respiratory fitness Metabolic health

Contacts and locations

Locations

  • Tunisia

    El Kef, Boulifa, 7100, Tunisia

More trials for these conditions

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