Strength Training With and Without Blood Flow Restriction on Shoulder Muscle Strength in Healthy … (NCT07186231) | Clinical Trial Compass
CompletedNot Applicable
Strength Training With and Without Blood Flow Restriction on Shoulder Muscle Strength in Healthy Adults
Portugal23 participantsStarted 2024-04-08
Plain-language summary
The goal of this clinical trial is to compare two types of shoulder strength training: low-load training with blood-flow restriction (BFR) and high-load training without BFR. The study includes healthy adults.
The main questions it aims to answer are:
Are changes in shoulder strength, power, endurance, and muscle mass similar with low-load BFR and high-load training?
Researchers will compare strength training with BFR to strength training without BFR to see whether changes in shoulder muscle performance are similar.
Participants will:
* Provide basic personal details, body measurements (e.g., height and weight), and a brief medical history before starting.
* Train in one of the two programs (BFR or no BFR) two times per week for 4 weeks.
* Complete tests of shoulder maximum strength, power, endurance, and muscle mass at the start and at the end of the protocol.
Who can participate
Age range
18 Years – 40 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
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.
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Change in Deltoid muscle mass
Timeframe: Baseline and between 24 hours and 1 week after completion of the 4-week intervention.
2
Change in shoulder muscle power
Timeframe: Baseline and between 24 hours and 1 week after completion of the 4-week intervention.
3
Change in shoulder muscle maximal strength
Timeframe: Baseline and between 24 hours and 1 week after completion of the 4-week intervention.
4
Change in muscle shoulder endurance
Timeframe: Baseline and between 24 hours and 1 week after completion of the 4-week intervention.