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Rehabilitation Efficacy of Low-Load Blood Flow Restriction Training for Lateral Patellar Compression Syndrome

Rehabilitation Efficacy of Low-Load Blood Flow Restriction Training for Lateral Patellar Compression Syndrome

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT06988917
Acronym
LL-BFRT
Enrollment
60
Registered
2025-05-25
Start date
2024-03-02
Completion date
2024-08-01
Last updated
2025-05-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Lateral Patellar Compression Syndrome

Keywords

Lateral Patellar Compression Syndrome, patellofemoral joint, LL-BFRT

Brief summary

The purpose of this study is to understand the effect of low-load blood flow restriction training on the rehabilitation effect of patients after lateral patellar compression syndrome surgery, and to observe the differences between low-load blood flow restriction training combined with conventional rehabilitation training and conventional rehabilitation training. The main question it aims to answer is: Can low-load blood flow restriction training improve the rehabilitation effect of patients after surgery for lateral patellar hypertension syndrome? Researchers compared conventional rehabilitation training with conventional rehabilitation training combined with low-load blood-limiting training to explore the effect of blood-limiting training combined with conventional rehabilitation training on the lower extremity function of patients after lateral patellar compression syndrome surgery, providing experimental and theoretical basis for formulating rehabilitation training programs.

Interventions

BEHAVIORALthe regular rehabilitation program

Each training session consists of a 10-minute warm-up (including power cycling, full-body stretching, etc.) At the same time, use the foam axis to relax the lateral oblique femoris and iliotibial band to relieve the pressure on the lateral side of the patella), 40 minutes of formal training (including wall squats with a ball, straight leg raising resistance training, terminal resistance knee extension training, bench kick ball clamping training, and balance training), and 10 minutes of relaxation (using a foam roller, foam axis and other combined techniques to relax the muscles Especially for the lower limb muscles such as the lateral femoris, iliotibial band, and tibialis anterior muscle.

DEVICEThe blood flow limiting pressure band

The experimental group (LL-BFRT group) wore a flow-limiting pressure band for exercise during routine rehabilitation training. The blood flow limiting pressure band used in this study mainly consists of a 109\*10cm leg pressure band, a barometric display dial with a pressure range of 0-300mmHg, and a pressure pump. In the experiment, we fixed the blood flow restriction pressure band in the area for measuring the circumference and adjusted the blood flow restriction pressure according to the thigh circumference of the subjects to maintain it within the range of 40%-60% arterial occlusion pressure. The way to limit blood flow is intermittent inflation, that is, during the intervals of muscle strength training, the cuff deflation operation is carried out simultaneously.

Sponsors

Peking University Third Hospital
Lead SponsorOTHER

Study design

Observational model
CASE_CONTROL
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
30 Years to 60 Years
Healthy volunteers
No

Inclusion criteria

1. Aged 30-60 years with a Visual Analog Scale (VAS) score ≥3; 2. Diagnosed with lateral patellar compression syndrome confirmed by MRI and clinical evaluation, having undergone arthroscopic lateral retinacular release surgery; 3. Presenting postoperative reduction in thigh circumference on the affected side, accompanied by quadriceps muscle atrophy and decreased muscle strength; 4. Minimum postoperative duration of ≥2 weeks, with signed informed consent and demonstrated ability to comply with the study protocol.

Exclusion criteria

1. Patients with concomitant fractures or other ligament injuries (including those with prior ACL reconstruction); 2. Individuals presenting with severe osteoarthritis or rheumatoid arthritis; 3. Those with medical histories of deep vein thrombosis, coagulation disorders, vascular diseases, or diabetes mellitus; 4. Subjects with active infections, malignancies, current pregnancy, or psychiatric disorders.

Design outcomes

Primary

MeasureTime frame
Lysholm score0-4week
VAS score0-4week
Peak torque of knee extension0-4week
Quadriceps thickness0-4week

Secondary

MeasureTime frame
Thigh circumference0-4week
Range of motion of the knee joint0-4week

Countries

China

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026