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Effects of Blood-flow Restricted Exercise Compared to Standard Rehabilitation in Patients With Knee Osteoarthritis

Key facts

Who runs it
Bispebjerg Hospital
Where
Denmark1 site in 1 countryChoose a country to see its sites
Trial code
Status
Completed
People taking part
96 people enrolled
Started
1 Jan 2022
Ended
14 Feb 2025
Type of study
Interventional, 2 groupsOne group gets an existing treatment, for comparison.
Treatments tested
  • BFR (Blood-Flow Restricted exercise)
  • Standard rehabilitation
Record updated
29 June 2025

Who can take part

Sex
Women and men
Healthy volunteers
Cannot take part

The registry criteria, word for word

Show all 20 criteriaShow less

Who can take part

  • All participants must meet the American College of Rheumatology (ACR) criteria for OA 35
  • Visible OA on X-ray pictures (Kellgren \& Lawrence grade 2-3)
  • Unilateral pain and functional limitation for a minimum of 3 months
  • Be able to voluntarily (i.e. unassisted) perform a 90 degrees flexion in the knee
  • Be able to perform the machine exercise (knee extension) planned for the BFR training
  • Danish-speaking
  • No longer travel planned within the intervention period

Who cannot take part

  • Prior knee- or hip alloplasty
  • Prior myocardial infarct or apoplexy, or chest pain during physical activity
  • Prior history of deep venous thrombosis
  • Known neurotic disease such as multiple sclerosis or peripheral neuropathy
  • Other health related or medical conditions which makes it impossible participate in the study; Furthermore, it is an exclusion criterium in the following conditions where use of pneumatic occlusion would be considered contraindicated:
  • Peripheral vascular disease
  • Venous insufficiency causing edema in the lower legs
  • Kellgren \& Lawrence grade 4
  • Bilateral OA-symptoms
  • Glucocorticosteroid injection in the knee within the last 6 months
  • Inflammatory arthritis
  • Excessive varicose veins
  • Systolic blood pressure over 160 mmHg or under 100 mmHg

This trial has no sites in United States.

It has sites in one country. Choose a country to see its sites.

About the trial

What the trial wants to find out

The purpose of this study is to investigate the effect of low-intensity BFR exercise on joint pain, muscle mass, and mechanical muscle function compared to standard rehabilitering in adults with knee-OA.

The 2 groups in the trial

  • BFR (Blood-Flow Restricted exercise)Treatment being tested

    The BFR training intervention group will perform low load blood-flow restricted exercise. Training twice a week for 12 weeks. The group will also attend a two hours education lecture with osteoarthritis information.

  • Standard rehabilitationExisting treatment, for comparison

    The standard rehabilitation group will be offered participation in the Good Life with osteoArthritis in Denmark programme (GLA:D). The programme includes supervised team group training twice a week for 8 weeks and an education lecture. The GLA:D programme will be followed by 4 weeks of team group training continuing the exercises from the GLA:D programme.

Data and sources

Registry record
Listed on ClinicalTrials.gov.
Official title
Effects of Low-intensity Blood-flow Restricted Exercise Compared to Standard Rehabilitation in Patients With Knee Osteoarthritis - a Randomized Controlled Trial
Record updated
29 June 2025