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Teen fitness test reveals how weight affects exercise response

NCT ID NCT07103889

What the study statuses mean

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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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 24, 2026 · Last updated Jun 26, 2026 · Updated 1 time

Summary

This study looked at how a short, intense running test changes blood sugar, fats, inflammation, and other health markers in normal-weight and overweight/obese teenage girls. 35 girls aged 14-18 completed the Spartacus test, and blood was drawn before, right after, and 30 minutes later. The goal was to understand how weight status affects the body's immediate response to maximal exercise.

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

35 people

The number who actually took part.

Started

Aug 2025

Finished

Aug 2025

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

13 to 18 years

Sex

Female participants only

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: * Female, * Aged 14-18 years * BMI between the 5th and \<85th percentile for age (normal-weight group), or BMI ≥ 85th percentile for age (overweight/obese group) * No chronic illness or contraindication to exercise * No regular medication use * Written informed consent from participant and parent/legal guardian Exclusion Criteria: * Presence of chronic diseases (diabetes, thyroid disorders, etc.) * Musculoskeletal or cardiovascular contraindications to maximal exercise * Pregnancy * Recent infection or inflammation * Use of anti-inflammatory or hormonal medications

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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.

Contacts and locations

Locations

  • High Institute of Sports and Physical Education of Kef

    Boulifa, Kef Governorate, 7100, Tunisia

More trials for these conditions

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