Breathing exercise boosts lung function in young smokers, small study finds
NCT ID NCT07003893
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested whether adding a specific breathing technique called diaphragmatic proprioceptive neuromuscular facilitation to aerobic exercise could improve lung function and exercise capacity in young adults (ages 20-29) who smoke heavily. Forty participants were split into two groups: one did only aerobic exercises, while the other added the breathing exercise. The researchers measured lung function and chest expansion to see if the breathing exercise made a difference.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Diaphragmatic proprioceptive neuromuscular facilitation (a breathing exercise technique) plus aerobic exercises
- What this could lead to
- If it works, this could point toward a simple, drug-free way to help young smokers improve their lung function and exercise capacity.
- What could go wrong
- This is a small, completed trial with only 40 participants, so results may not apply to all smokers. The intervention is a breathing exercise, not a treatment for smoking addiction or lung disease.
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
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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
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40 people
The number who actually took part.
- Started
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Jul 2025
- Finished
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Nov 2025
- Lead sponsor
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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
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20 to 29 years
- Sex
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Male participants only
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Adults aged 20-29 years. * Subjects who have been smoking for 1 to 3 years. * Subjects who not receiving medical treatment for respiratory diseases. * Subjects who have clean family medical history. Exclusion Criteria: * Subjects who smoke cigars other than filtered cigarettes or tobacco pipes. * Subjects with respiratory proplems. * Participation in another clinical trial within the last 30 days. * Endocrine and metabolic disorders (eg, hypothyroidism, hypercalcemia, diabetes mellitus, diabetes insipidus). * Neurologic and psychiatric disorders (who can not understand the research project ).
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Mohamed Saied Zidan
Cairo, 11571, Egypt
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Other studies related to the condition(s) this trial covers.