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Simple breathing trick boosts lung function in stroke patients

NCT ID NCT07577076

Symptom relief Sponsor: jang ji-hun 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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested whether a breathing exercise using an Ambu-bag (air stacking) can improve lung function and trunk control in people who had a stroke. Twenty stroke survivors did either the air stacking breathing exercise or standard diaphragmatic breathing, three times a week for four weeks. Researchers measured changes in lung capacity, chest expansion, and trunk control before and after the program.

What this could mean

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

Active substance
air stacking-assisted diaphragmatic breathing exercise using an Ambu-bag
What this could lead to
If it works, this breathing technique could become a simple, low-cost way to help stroke survivors breathe better and improve their trunk control.
What could go wrong
This is a very small, early-stage study with only 20 participants. Results may not apply to all stroke patients, and the improvement might be modest.

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

20 people

The number who actually took part.

Started

Sep 2025

Finished

Feb 2026

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

19 to 80 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: * Inpatients diagnosed with stroke (intracerebral hemorrhage or cerebral infarction) at a general hospital in Daegu, currently receiving physical therapy * Onset of stroke at least 3 months prior to enrollment * Spasticity grade of 2 or less on the Modified Ashworth Scale * No congenital deformity or fracture of the thorax or other orthopedic conditions affecting the chest wall * No history of pulmonary disease before or after the stroke * Able to perform respiratory exercises as instructed * Mini-Mental State Examination-Korean version (MMSE-K) score of 24 or higher, indicating sufficient cognitive ability to understand the study procedures * Presence of decreased pulmonary function (reduced pulmonary function test parameters) at baseline Exclusion Criteria: * Acute stroke status or onset of stroke less than 3 months prior to enrollment * Severe cardiovascular or respiratory disease that makes participation in respiratory exercise unsafe or impossible * Cognitive impairment or communication disorder that prevents understanding or performing the study procedures * Any other medical or safety condition judged by the investigator to make participation in the study inappropriate

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Conditions

The condition(s) this trial relates to.

hemiplegia stroke disorder

As listed by the trial registrant

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

Hemiplegia Stroke

Contacts and locations

Locations

  • Daegu Fatima Hospital

    Daegu, Daegu, 41199, South Korea

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