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Can gentle training with blood flow cuffs replace heavy lifting for shoulder strength?

NCT ID NCT07186231

Knowledge-focused Sponsor: Alice Maria da Costa Carvalhais 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 26, 2026

Summary

This completed trial compared two shoulder strength training methods in 23 healthy adults: low-load training with a blood flow restriction (BFR) cuff and traditional high-load training without BFR. Participants trained twice a week for four weeks. Researchers measured changes in shoulder muscle mass, strength, power, and endurance to see if the gentler BFR method could produce similar results to heavy lifting.

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 (BFR) training device
What this could lead to
If successful, this could show that low-load BFR training builds shoulder muscle as effectively as heavy lifting, offering a gentler alternative for people who cannot lift heavy weights.
What could go wrong
This is a small, early-stage trial in healthy adults, not patients. Results may not apply to injured or older populations, and BFR carries risks like bruising or discomfort.

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

23 people

The number who actually took part.

Started

Apr 2024

Finished

May 2024

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

18 to 40 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: * Body Mass Index between 18.5 and 30 kg/m² Exclusion Criteria: * participation in sports that heavily involve the dominant arm (e.g., tennis, volleyball, or handball) and do not engage in strength training exercises on the upper limb; * history of trauma or surgery affecting the dominant upper limb; * acute or chronic shoulder pain,; * radiating pain; * cervical disc herniation; * previous neck surgeries,; * upper limb edema; * history of deep vein thrombosis; * history of oncologic or metabolic conditions; * pregnancy; * experience of persistent symptoms such as numbness, tingling, or pain exceeding 7/10 on a numeric scale during the training (applicable to BFR group); * missed more than one session during the study.

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Conditions

The condition(s) this trial relates to.

Hypertrophy

As listed by the trial registrant

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

Blood flow restriction (BFR) training effects Resistance training

Contacts and locations

Locations

  • Escola Superior de Tecnologias da Saúde do Tâmega e Sousa

    Gandra, Paredes, 4585-116, Portugal

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