Can six weeks of breathing training make Kids' lungs stronger?

NCT ID NCT07810361

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
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Paused for now. It may or may not start again.
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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 Results may not be published yet.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)

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Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
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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

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First seen Sep 09, 2026 · Last updated Sep 10, 2026 · Updated 1 time

Summary

Researchers are testing whether a six-week program of breathing-muscle training combined with high-intensity interval exercise improves diaphragm thickness, lung function, and aerobic fitness in boys aged 10 to 12 with obesity. Fifty boys are randomly assigned to the combined training or to usual activity. The breathing training uses a handheld device that adds resistance as participants inhale, and the exercise sessions alternate short bursts of hard effort with rest.

What this could mean

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

Active substance
a six-week program of inspiratory muscle training with a pressure-loading breathing device plus functional high-intensity interval training
What this could lead to
If it works, this could offer a low-cost exercise program that helps children with obesity breathe more efficiently and stay active.
What could go wrong
The trial is small and short, so any benefits may fade once training stops. Results in boys aged 10 to 12 may not apply to girls or other age groups.

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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 50 people

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

Expected to start

Oct 2026

An estimate. Start dates often move.

Expected to finish

Dec 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

10 to 12 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 sex. * Age 10-12 years. \*Obesity according to World Health Organization age- and sex-specific BMI reference criteria. * No regular participation in structured exercise training during the preceding six months. * Medical clearance to participate in moderate-to-vigorous physical activity. Exclusion Criteria: * Diagnosed cardiovascular, neuromuscular, orthopaedic, or metabolic conditions that could interfere with exercise participation. * Chronic respiratory disease, including asthma requiring regular medication. * Impaired pulmonary function defined as FEV₁/FVC \<75%. \*Upper respiratory tract infection within the preceding two weeks. * Medication use that could affect respiratory function or exercise capacity. * Previous thoracic surgery. * Inability to complete the testing procedures.

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Conditions

The condition(s) this trial relates to.

Obesity obesity disorder Overweight Pediatric Obesity

As listed by the trial registrant

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

How to take part

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  1. The places running it

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  2. The official record

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Contacts and locations

Locations

  • Gumushane Üniversity

    Trabzon, Gümüşhane Province, 29000, Turkey (Türkiye)

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