Using blood flow restriction therapy for lower limb injuries

Blood Flow Restriction Therapy in Lower Limb Extensor Injuries: A Randomized Controlled Double-Blind Study

NA · NYU Langone Health · NCT04149977

This study is testing if using a special cuff during physical therapy can help people with lower limb injuries build strength and muscle better than those who don’t use the cuff.

Quick facts

PhaseNA
Study typeInterventional
Enrollment128 (estimated)
Ages18 Years to 65 Years
SexAll
SponsorNYU Langone Health (other)
Locations1 site (New York, New York)
Trial IDNCT04149977 on ClinicalTrials.gov

What this trial studies

This study aims to evaluate the effectiveness of blood flow restriction therapy in enhancing strength and muscle mass in patients with lower limb extensor injuries. The therapy involves applying an inflatable cuff to restrict venous outflow during physical therapy exercises, creating a high-intensity environment that promotes muscle hypertrophy. Participants will undergo physical therapy with either a pressure cuff or a placebo cuff, with their progress monitored through pre and post-treatment assessments. The study seeks to fill a gap in existing literature regarding the application of this therapy for specific lower limb injuries.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 to 65 diagnosed with lower limb extensor injuries who intend to receive physical therapy.

Not a fit: Patients with severe hypertension, impaired circulation, or other significant comorbidities may not benefit from this study.

Why it matters

Potential benefit: If successful, this therapy could significantly improve rehabilitation outcomes for patients with lower limb extensor injuries.

How similar studies have performed: While blood flow restriction therapy has shown promise in various conditions, its specific application for lower limb extensor injuries is relatively novel and under-researched.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Must be at least 18 years of age and younger than 65 years of age
* ASA class I-II
* Diagnosed with a lower limb extensor injury (quadriceps tendon rupture, patella tendon rupture, patella fracture)
* Intention to receive physical therapy as standard of care

Exclusion Criteria:

* Legally incompetent or mentally impaired (e.g. minors, Alzheimer's subjects, dementia, etc.)
* Younger than 18 years of age or older than 65
* Any patient considered a vulnerable subject
* Patients with impaired circulation, peripheral vascular compromise, previous revascularization of the extremity, or severe hypertension
* Concomitant lower extremity traumatic injuries, delaying or precluding the subject's ability to participate in the therapy
* Immobile or use of mobile assistive device prior to injury
* No prior extensor injuries
* Patients with Sickle cell anemia or venous thromboembolism
* Patients with cancer or Lymphectomies
* Patients with increased intracranial pressure
* Patients with intention to receive standard therapy and not the study therapy

Where this trial is running

New York, New York

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Lower Limb Injury

Last reviewed 2026-05-15 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.