Not yet recruitingNAINTERVENTIONAL

Investigation of the Individual Fatigue Response During Blood Flow Restriction Training

This small study aims to see if a particular exercise method, called Blood Flow Restriction (BFR) training, can be safely used and understood better during recovery after knee replacement surgery. BFR involves cycling while a special cuff restricts some blood flow to the legs. The main goal is to carefully watch how people feel tired during this exercise. This will help doctors and therapists learn how to manage the exercise intensity so that patients get the most benefit without overdoing it. It's hoped that this research will improve how we help patients recover and get stronger after a total knee replacement operation.

At a glance

Status

Not yet recruiting

Phase

Sponsor

University Hospital, Bonn

Enrolment target

Start

15 Jun 2026

Estimated completion

31 Mar 2027

Total Knee Anthroplasty

What is this study about?

Knee replacement surgery can help many people with painful knee arthritis. After the surgery, it's really important to do exercises to get your strength back and recover well. This study is looking at a specific type of exercise called Blood Flow Restriction (BFR) training during cycling. BFR involves wearing a special cuff on your leg, similar to a blood pressure cuff, which gently reduces the blood flow to your muscles while you exercise.

The main idea behind this study is to understand how your body responds and how tired you feel when doing BFR cycling after a knee replacement. The researchers want to see if this method of exercise can be used safely in a supervised setting. They are especially interested in how to best adjust the exercise so that it's challenging enough to help you get stronger, but not so challenging that it causes unnecessary strain.

Ultimately, the results of this study are meant to help doctors and physical therapists improve how they plan and carry out exercise programmes for people recovering from knee replacement surgery. By better understanding how BFR affects tiredness and strain, they can make sure you're getting the best possible care and recovery, helping you get back on your feet more effectively and safely.

Key takeaways

Looks at how people feel tired during special cycling after knee replacement.
Uses a method called Blood Flow Restriction (BFR) with a cuff on the leg.
Aims to make recovery plans better and safer for knee surgery patients.
You must be an adult, had recent knee replacement, and able to cycle.
Closely supervised exercise, with the right to stop at any time.

Who may be eligible?

To be part of this study, you would need to be an adult between 18 and 85 years old. You should have recently had a total knee replacement operation because of arthritis, and you must be able to cycle.

Also, you need to be attending the specific rehabilitation centre where this study is taking place. This ensures that the exercises can be properly supervised by the study team.

There are also some reasons why you might not be able to join. For example, if you have open wounds, problems with your blood vessels (like bypasses or stents), or a condition called sickle cell anaemia, you wouldn't be able to take part.

Could this study suit you?

Answer these quick questions to see if you may be eligible. This is a guide only — the research team makes the final call.

Are you between 18 and 85 years old?
Have you recently had a total knee replacement due to arthritis?
Are you able to comfortably ride a stationary bicycle?
Are you currently attending the specific rehabilitation centre where the study is happening?
Do you have any open wounds or specific blood vessel issues (like bypasses or stents)? (If yes, you may not be eligible)
Do you have sickle cell anaemia? (If yes, you may not be eligible)

Answer every question to see your result.

What does participation involve?

The detailed information about what taking part involves is not fully provided in this summary. However, based on the scope, if you join this study, you would be asked to participate in cycling exercises with Blood Flow Restriction (BFR) at a rehabilitation centre. This would be done under the careful supervision of clinical staff. The study aims to look at your body's response, especially how you feel tired, during these exercise sessions. It's likely that you would have regular appointments at the rehab centre for these exercises and assessments. The total duration of your participation is not specified but would be part of your rehabilitation programme.

Potential risks and benefits

Participating in this study might offer some potential benefits by helping researchers understand how to make rehabilitation after knee surgery more effective, which could indirectly benefit future patients. For you, it means you'd be doing supervised exercises that could aid your recovery. As with any exercise, there are potential risks, such as feeling tired or uncomfortable, or in rare cases, other issues related to blood flow restriction, which is why close supervision is key. You would always have the right to withdraw from the study at any time without giving a reason, and this would not affect your standard medical care.

Locations (1)

University Hospital Bonn
Verified postcode
Bonn, Germany

Common questions

What is Blood Flow Restriction (BFR) training?

It's an exercise method where a special cuff is placed on your leg, gently reducing blood flow, while you do exercises like cycling. This can help build strength more easily.

Will this study help me recover from my knee surgery?

You'll be doing supervised exercises that are part of your recovery. The study's main aim is to learn more about BFR to help improve recovery plans for future patients.

Is BFR exercise safe?

When done under proper supervision, BFR is generally considered safe. This study specifically checks its safety in a clinical setting after knee replacement surgery.

What if I feel uncomfortable during the exercise?

You will be closely supervised. If you feel uncomfortable or have any concerns, you should tell the staff immediately, and they will adjust or stop the exercise.

How long would I need to be in the study?

The exact duration isn't specified, but it would involve participating in regular exercise sessions as part of your rehabilitation programme at the centre.

How to find out more

Alexander Franz, Dr. med., B.Sc.

alexander.franz@ukbonn.de +491703750718 Official trial record

Always speak to your GP or specialist before deciding to take part in a study.