Tighten up: blood flow restriction rope training may give volleyball players an edge
NCT ID NCT07327177
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether adding blood flow restriction (BFR) to rope training helps male volleyball players build more muscle strength, size, and power. Over eight weeks, 20 athletes will do the same rope exercises either with or without BFR. Researchers will measure changes in muscle thickness, strength, serve speed, and endurance to see if BFR provides extra benefits.
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 rope training
- What this could lead to
- If it works, this could point toward a simple training method to improve muscle strength and sports performance in athletes.
- What could go wrong
- This is a small, early-stage study with only 20 participants, so results may not apply to all athletes. The training is also short-term, so long-term benefits are unknown.
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 26 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Dec 2025
An estimate. Start dates often move.
- Expected to finish
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Mar 2026
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 25 years
- Sex
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Male participants only
- 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: * Being healthy * Male volleyball athletes * Willing to maintain the intervention for all sessions Exclusion Criteria: * Being under 18 years old * Having a chronic disease * Contraindications for exercise
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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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Karabuk University
Karabük, Turkey, 78200, Turkey (Türkiye)
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