Effect of Adding Blood Flow Restriction to Strengthening Exercise in Patients With Patellofemoral Pain Syndrome

Обзор

To study the effect of adding BFRT to strengthening exercises and compare it with strengthening exercises alone in improving, muscular strength, pain, function, joint position sense, and dynamic balance test (star excursion test). in patients with PFPS.

Подробное описание

Background: Patellofemoral Pain Syndrome (PFPS) is a common condition characterized by anterior knee pain, particularly affecting individuals aged 15-30. It often involves lower limb muscle weakness, particularly in the quadriceps, which can exacerbate symptoms and affect functional performance. Blood Flow Restriction Training (BFRT) has shown promise in enhancing muscle strength and functional outcomes with reduced intensity compared to traditional high-intensity training.

Purpose: This study aims to compare the efficacy of combining BFRT with traditional strengthening exercises versus using strengthening exercises alone in improving muscular strength, pain, function, joint position sense, and dynamic balance in patients with PFPS.

Methods: A triple-blinded, randomized controlled trial was conducted at the Almenshawy General Hospital, Tanta, Egypt. Fifty patients with unilateral non-traumatic PFPS, aged 18-35, were randomly assigned to either a strengthening exercises group (SE Group) or a BFRT plus strengthening exercises group (BFRT Group). Both groups underwent a 6-week intervention with three sessions per week. Outcomes assessed included quadriceps and hip abductors strength, pain severity (Visual Analog Scale), functional status (Kujala Patellofemoral Score), joint position sense (measured by digital inclinometer), and dynamic balance (Star Excursion Balance Test).

Вмешательства

• Другое BFR
  Blood flow restriction training is an accessory to a variety of different exercise modes (e.g., resistance exercise, walking, cycling) has recently become a popular research topic. It involves the application of pressurized cuffs to the proximal portion of each lower extremity or upper extremity. It enhance blood pooling in the capillary beds of the limb muscles distal to the tourniquet or cuff. The 3rd Generation SmartCuffs® pump (SmartCuffs® 3.0 PRO) is Personalized Pressure feature which all
• Другое strengthening exercise
  Quadriceps strengthening exercises are part of the treatment of PFPS, but the heavy resistance exercises may aggravate knee pain. Blood flow restriction training (BFRT) provides a low-load quadriceps strengthening method to treat PFPS (Giles et al., 2017).

Первичные конечные точки

• quadriceps and hip abductors strength [Срок оценки: 6 weeks]

Вторичные конечные точки (4)

• pain severity using Visual Analog Scale (VAS) [Срок оценки: 6 weeks]
• functional status (Kujala Patellofemoral Score) [Срок оценки: 6 weeks]
• joint position sense (measured by digital inclinometer) [Срок оценки: 6 weeks]
• dynamic balance (Star Excursion Balance Test [Срок оценки: 6 weeks]

Критерии участия

Критерии включения

• Patient referred from Orthopedic surgeon with diagnosis of patellofemoral pain syndrome PFPS.
• Both genders.
• BMI ranges from 18.5 to 29.9.
• Age ranges between 18 and 40 years experienced non-traumatic PFPS onset of anterior knee pain for greater than 2 weeks.
• Pain with any two activities, including running, jumping, squatting, kneeling, stair ascent/descent or prolonged sitting.

Критерии исключения

• Coexisting pathology around the knee, including patellar subluxation or dislocation.
• Other sources of anterior knee pain (bursa, fat pad).
• Previous knee surgery.
• Suspicion of patellar tendinopathy, with strong consideration of pain localised to the patellar tendon.
• Any cardiovascular disease.
• Uncontrolled hypertension.
• Any lower limb trauma.
• Hip and ankle pathology.
• BMI more than 30%.
• Pregnancy.

Критерии приведены из реестра в оригинале (на английском). Окончательную оценку соответствия проводит исследовательский центр.

Здоровые добровольцы: Нет

Дизайн исследования

Распределение

Рандомизированное

Модель

Параллельные группы

Маскирование

Тройное слепое

Основная цель

Лечение

Центры проведения

Египет · 1 центр

• Cairo University — Giza

Публикации

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Идентификаторы

NCT: NCT06565754 · P.T.REC/012/005148 · P.T.REC/012/005148

Первоисточники (государственные реестры)

• ClinicalTrials.gov (NIH, США)

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