Cuff workout may change heart rhythms, study warns
NCT ID NCT07344740
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at how a special type of exercise—using a cuff to partly block blood flow to a limb—affects the heart. Forty healthy adults will do low-weight exercises with and without the cuff while researchers measure heart cycle timing and filling. The goal is to see if this common rehab technique puts extra strain on the heart.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Blood flow restriction resistance exercise
- What this could lead to
- If successful, this could help design safer rehabilitation programs for people recovering from injuries.
- What could go wrong
- This is a small, early-stage study in healthy people, so results may not apply to patients. The exercise involves restricting blood flow, which carries risks like blood clots in susceptible individuals.
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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About 40 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Feb 2026
An estimate. Start dates often move.
- Expected to finish
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Jan 2028
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 to 50 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.
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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: * Generally healthy Exclusion Criteria: * Uncontrolled hypertension * Peripheral vascular disease * Lymphedema * Sickle cell anemia * Heart failure * Stroke history * Heart attack history * Rheumatoid arthritis * Chronic kidney disease * Diabetes * Severe neuropathy * Any condition that may make blood flow restriction resistance exercise riskier like history of blood clots * Use of coagulant therapy * Susceptible to blood clots * Obesity
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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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Montclair State University
Montclair, New Jersey, 07043, United States
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