Breathe away the stress: biofeedback study targets heart health in minorities
NCT ID NCT07172152
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This completed study tested whether a four-week heart rate variability biofeedback program—simple paced breathing exercises—could help young ethnic minority adults (ages 18-35) with a family history of heart disease manage stress and anxiety. Participants were randomly assigned to either the breathing group or a control group. Researchers measured changes in heart rate variability, anxiety levels, and stress responses to see if this low-cost, non-invasive approach could lower heart disease risk.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- HRV biofeedback training (paced breathing exercises)
- What this could lead to
- If it works, this could point toward a simple, non-drug way to lower stress and heart disease risk in high-risk groups.
- What could go wrong
- This is a small, completed early-stage study with only 66 participants. Results may not apply to everyone, and benefits may be modest or not last long.
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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66 people
The number who actually took part.
- Started
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Sep 2025
- Finished
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Dec 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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18 to 35 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide 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: * Adults * Age 18 to 35 years * Cognitively intact to follow instructions * English-speaking * Family history of cardiovascular disease. Exclusion Criteria: * Cognitive impairments that inhibit understanding instruction * Current diagnosis of hypertension that is controlled with prescribed medication * Previously receiving biofeedback training * Having a severe medical condition (e.g., pacemaker, cardiac arrhythmia, hypertension, diabetes) * Being actively psychotic * Having a neurological condition (e.g., Parkinson's disease) that would complicate the interpretation of physiological data * Patients currently taking medications such as MAOIs, alpha/beta-blockers, or withdrawal or maintenance medications (e.g., Librium, methadone) are excluded due to their potential to affect the HRV data
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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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Florida International University
Miami, Florida, 33199, United States
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