Clinical trial Recruiting at 1 site Interventional Ages 18 and up

Blood Flow Restriction Exercise for Achilles Tendon Rupture

Official title: The Effectiveness of Low-load Blood Flow Restriction Exercise in Patients With an Acute Achilles Tendon Rupture Treated Non-surgically

Run by University of Aarhus · NCT06434272 · Data updated 2026-11-12

This study is testing if adding Blood Flow Restriction Exercise to regular treatment can help people recover better from an Achilles tendon rupture, depending on when they start the exercise.

Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment218 (estimated)
SponsorUniversity of Aarhus
Academic / other
Locations1 site (Aarhus N, Denmark)
StatusRecruiting
StartedJanuary 28, 2025
Main results expectedJanuary 9, 2028
Study endsJanuary 9, 2028
Registry record updatedOctober 30, 2026
Trial IDNCT06434272 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 18 and older who have sustained an acute Achilles tendon rupture and can start treatment within 72 hours.

Probably not a fit

Patients with bilateral Achilles tendon ruptures or significant comorbidities affecting lower extremity function may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This clinical trial investigates the effects of Blood Flow Restriction Exercise (BFRE) as an adjunct to usual care in patients with an acute Achilles tendon rupture. Participants will be randomly assigned to receive BFRE either in the early phase (1-12 weeks) or later phase (13-24 weeks) after their injury, alongside standard treatment. The study aims to determine the effectiveness of BFRE compared to usual care alone and to identify the optimal timing for initiating BFRE. Outcome measures will include functional tests and self-reported symptoms assessed at 13 and 25 weeks post-allocation.

Why it matters

Potential benefit: If successful, this approach could enhance recovery and functional outcomes for patients with Achilles tendon ruptures.

How similar studies have gone: While the use of BFRE is gaining attention, this specific application in Achilles tendon rupture is relatively novel and has not been extensively tested in prior studies.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* aged 18 years or older
* have started initial treatment within 72 hours of Achilles tendon rupture
* understand written and spoken Danish

Exclusion Criteria:

* bilateral Achilles tendon rupture
* previous Achilles tendon rupture in either leg
* decreased lower extremity function, caused by conditions other than Achilles tendon rupture
* treated with fluoroquinolones within the last six months
* treated with corticosteroid injection(s) in the area near the Achilles tendon within the last six months.
* diabetes
* previous diagnosed thrombosis
* Known atherosclerosis in the peripheral arteries of the lower limb
* other reasons for exclusion (cognitive deficits, inability to provide informed consent, requiring cast-treatment due to low compliance regarding gradual wedge removal, etc.)

Where it's running

  • Aarhus University Hospital
    Aarhus N, Denmark, Denmark
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.