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Can a special breathing method boost exercise for smokers?

NCT ID NCT07399119

Knowledge-focused Sponsor: Cairo University 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 adding the Wim Hof breathing method to a short aerobic workout can improve heart rate, blood pressure, and oxygen use in healthy young adults who smoke. Sixty smokers aged 18 to 25 will be split into two groups: one does only walking or jogging, the other does the same exercise plus the breathing technique before and after. The goal is to see if the breathing method makes an immediate difference in how the heart and lungs respond to exercise.

What this could mean

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

Active substance
Wim Hof breathing method
What this could lead to
If it works, this could point toward a simple breathing technique to boost exercise performance in smokers.
What could go wrong
This is a very small, early study (60 people) looking only at immediate effects. Results may not apply to older or less healthy people, and the breathing method may not provide lasting benefits.

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 60 people

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

Started

Jun 2025

Expected to finish

Feb 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 25 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: * Males and females. * Age range between 18 and 25 years. * Adults who are healthy Exclusion Criteria: If they had: * Any systemic disorders. * Musculoskeletal, neuromuscular, or chronic respiratory conditions. * Females were menstruating

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Conditions

The condition(s) this trial relates to.

lung disorder

As listed by the trial registrant

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

Exercise training Pulmonary Respiratory abnormality

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

  • BAU

    Beirut, Tariq EL Jedida, 11-5020, Lebanon

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