Breathing workout may ease sleep apnea in severe obesity
NCT ID NCT07469280
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether 12 weeks of daily breathing exercises using a special device can reduce sleep apnea severity and improve sleep quality in 10 adults with severe obesity (BMI over 40) and obstructive sleep apnea. Participants will do progressively harder breathing workouts at home. The goal is to see if this simple, drug-free approach can ease symptoms and strengthen breathing muscles.
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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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About 10 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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May 2026
An estimate. Start dates often move.
- Expected to finish
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Dec 2027
An estimate. End dates often move.
- 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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18 years and older
- Sex
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Anyone
- 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 (≥18 years). * Of both genders. * Class III obesity (BMI \> 40 kg/m²). * Diagnosis of OSA. * Without neurological conditions that would prevent them from responding to the study assessments. Exclusion Criteria: * Systemic diseases (pulmonary, cardiac or renal). * Are using medications that may affect muscle performance. * Are currently using CPAP therapy. * Conditions that could compromise adherence to the study protocol.
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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.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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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
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Santa Catarina State University - CEFID (Center of Health and Sport Sciences)
Florianópolis, Santa Catarina, 88080-350, Brazil
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