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Effect of Blood Flow Restriction Training Versus Pilates on Shoulder Impingement Syndrome

20 maja 2026 zaktualizowane przez: Manar Tarek Abdelnaser Abdelmohimen, Cairo University

Blood Flow Restriction Versus Pilates Exercises in Treatment of Patients With Subacromial Impingement Syndrome

Subacromial impingement syndrome (SAIS) is the most common cause of shoulder pain, accounting for a large proportion of musculoskeletal complaints. It is characterized by narrowing of the subacromial space, leading to pain, weakness, limited range of motion, and impaired shoulder function. Muscle weakness, especially of the rotator cuff and scapular stabilizers, plays a major role in its pathomechanics.

Although conventional strengthening exercises are effective, they are often delayed until pain subsides, which may prolong recovery. Blood Flow Restriction (BFR) training and Pilates exercises have recently emerged as promising approaches that may enhance strength and function during earlier, painful stages of rehabilitation. However, limited research has compared both interventions in patients with SAIS. Therefore, this study aims to compare the effectiveness of BFR training versus Pilates exercises, in addition to conventional therapy, on pain, function, range of motion, muscle strength, and proprioception in patients with painful SAIS.

Przegląd badań

Szczegółowy opis

Shoulder pain is one of the most prevalent musculoskeletal complaints, ranking as the third most common condition encountered in primary care settings. Among the various causes of shoulder pain, subacromial impingement syndrome (SAIS) represents the most frequent diagnosis, accounting for nearly half to two-thirds of reported shoulder pain cases. SAIS is characterized by narrowing of the subacromial space, resulting in compression and irritation of soft tissues such as the supraspinatus tendon, long head of biceps tendon, subacromial bursa, and joint capsule.

Clinically, patients with SAIS present with pain during overhead activities, muscle weakness, and a painful arc of motion, particularly between 60° and 120° of shoulder elevation. Weakness of the rotator cuff and scapular stabilizing muscles contributes significantly to altered scapulohumeral rhythm and compromised glenohumeral stability. Consequently, muscle strengthening is considered a cornerstone in rehabilitation programs.

Traditional resistance training typically requires moderate to high loads (around 60% of one-repetition maximum) to achieve strength gains. However, during the painful phases of SAIS, patients may not tolerate heavy loading, leading to delayed initiation of strengthening exercises and prolonged recovery time. Therefore, alternative strengthening strategies that minimize mechanical stress while promoting muscle adaptation are needed.

Blood Flow Restriction (BFR) training is a technique that applies controlled external pressure to partially restrict arterial inflow and venous outflow, enabling strength gains with low-load resistance (approximately 20-30% of 1RM). It stimulates metabolic stress and anabolic pathways, enhancing muscle hypertrophy and strength while reducing joint stress.

Pilates exercises, on the other hand, are mind-body exercises based on principles of control, concentration, centering, precision, breathing, and flow. They emphasize neuromuscular control, core stability, scapular alignment, and coordinated movement patterns. Previous studies have demonstrated beneficial effects of Pilates in improving pain, function, and muscle strength in various musculoskeletal disorders, including shoulder conditions.

Despite the promising effects of both BFR and Pilates, limited evidence directly compares their effectiveness in shoulder rehabilitation, particularly in patients with SAIS. To the author's knowledge, no previous study has directly compared these two interventions in managing painful subacromial impingement syndrome. Therefore, this study aims to evaluate and compare the effects of BFR training and Pilates exercises, in addition to conventional therapy, on pain intensity, functional disability, shoulder range of motion, muscle strength, and proprioception in patients with SAIS.

Typ studiów

Interwencyjne

Zapisy (Szacowany)

48

Faza

  • Nie dotyczy

Kontakty i lokalizacje

Ta sekcja zawiera dane kontaktowe osób prowadzących badanie oraz informacje o tym, gdzie badanie jest przeprowadzane.

Kontakt w sprawie studiów

  • Nazwa: Manar Tarek Abdelnaser, Demonstrator
  • Numer telefonu: +2001226874389 +2001553437534
  • E-mail: tm610587@gmail.com

Lokalizacje studiów

      • Rāshid, Egipt
        • Rekrutacyjny
        • Faculty of physical therapy, Rashid university

Kryteria uczestnictwa

Badacze szukają osób, które pasują do określonego opisu, zwanego kryteriami kwalifikacyjnymi. Niektóre przykłady tych kryteriów to ogólny stan zdrowia danej osoby lub wcześniejsze leczenie.

Kryteria kwalifikacji

Wiek uprawniający do nauki

  • Dziecko

Akceptuje zdrowych ochotników

Nie

Opis

Inclusion Criteria:

1 - Age ranging from 18 to 55 years of both genders, with BMI ranging 18.5 to 29.9 Kg/m2 2. Clinically diagnosed with SIS, based on having ≥ 3 positive results of the following; pain during shoulder elevation and overhead activities, the painful arc, Neer impingement, Hawkins-Kennedy impingement, external rotation resistance, or empty can tests 3. Symptoms duration between 4 to 12 weeks (subacute and chronic phases)

4. pain level should be ranged from 3 to 8 on the VAS .

Exclusion Criteria:

1 - History of shoulder surgery, traumatic injury or systematic diseases 2. Any cervical problems as cervical disc & any patient with radioculopathy. 3. Pregnancy. 4. Acute stage of subacromial impingement syndrome 5. Full thickness tear confirmed by the orthopaedist. 6. subjects shouldn't receive any physical therapy sessions in the past 3 months to minimize any confounders to treatment.

Plan studiów

Ta sekcja zawiera szczegółowe informacje na temat planu badania, w tym sposób zaprojektowania badania i jego pomiary.

Jak projektuje się badanie?

Szczegóły projektu

  • Główny cel: Leczenie
  • Przydział: Randomizowane
  • Model interwencyjny: Przydział równoległy
  • Maskowanie: Pojedynczy

Broń i interwencje

Grupa uczestników / Arm
Interwencja / Leczenie
Eksperymentalny: Low-load resistance training with BFR
Participants will perform low-load resistance training combined with Blood Flow Restriction (BFR) 3 times per week for 4 weeks. Each session will last 45 minutes and include exercises for shoulder muscles with cuffs applied to the upper arm to partially restrict blood flow, ensuring safety and gradual load progression combined with cool's exercises
Participants will perform low-load resistance training combined with Blood Flow Restriction (BFR) 3 times per week for 4 weeks. Each session will last 45 minutes and include exercises for shoulder muscles with cuffs applied to the upper arm to partially restrict blood flow, ensuring safety and gradual load progression.
Eksperymentalny: Pilates exercises group
Participants will perform supervised Pilates exercises 3 times per week for 4 weeks. Each session will last 45 minutes and include mat-based exercises, resistance band work, and equipment-assisted movements targeting shoulder mobility, stability, and posture. Exercises will be progressively adjusted according to participant tolerance and performance combined with cool's exercises
Participants will perform supervised Pilates exercises 3 times per week for 4 weeks. Each session will last 45 minutes and include mat-based exercises, resistance band work, and equipment-assisted movements targeting shoulder mobility, stability, and posture. Exercises will be progressively adjusted according to participant tolerance and performance.
Aktywny komparator: Control group
Participants will perform standard Cool's exercises 3 times per week for 4 weeks. Each session will last 45 minutes and focus on targeted shoulder rehabilitation movements designed to improve flexibility, muscle activation, and pain reduction. Exercises will be supervised and progressively adapted based on participant performance.
: Participants will perform standard Cool's exercises 3 times per week for 4 weeks. Each session will last 45 minutes and focus on targeted shoulder rehabilitation movements designed to improve flexibility, muscle activation, and pain reduction. Exercises will be supervised and progressively adapted based on participant performance

Co mierzy badanie?

Podstawowe miary wyniku

Miara wyniku
Opis środka
Ramy czasowe
Shoulder Pain
Ramy czasowe: Baseline, week 2, week 4
Pain intensity will be measured using the Visual Analogue Scale, a 0-10 scale where 0 indicates no pain and 10 indicates worst imaginable pain. Patients will mark their pain at rest and during shoulder activity. This outcome assesses the effectiveness of the interventions in reducing pain.
Baseline, week 2, week 4
Shoulder Function (SPADI)
Ramy czasowe: Baseline, Week 2, Week 4
Shoulder function will be evaluated using the Shoulder Pain and Disability Index (SPADI), which includes pain and disability subscales. Scores range from 0-100, with higher scores indicating greater disability. This measure evaluates functional improvement after the intervention.
Baseline, Week 2, Week 4

Miary wyników drugorzędnych

Miara wyniku
Opis środka
Ramy czasowe
Range of Motion (ROM)
Ramy czasowe: Baseline, Week 2, Week 4
Active shoulder ROM (flexion, abduction) will be measured using a Inclinometer by a physical therapist. This assesses the interventions' effect on mobility.
Baseline, Week 2, Week 4
Muscle Strength
Ramy czasowe: Baseline, Week 2, Week 4
Shoulder abduction and external rotation strength will be measured using a hand-held dynamometer. The outcome evaluates changes in muscular capacity after the intervention
Baseline, Week 2, Week 4
Shoulder proprioception
Ramy czasowe: Baseline, Week 4
Measures the participant's ability to actively reproduce specific shoulder angles. Assesses improvement in sensorimotor control after intervention.
Baseline, Week 4

Współpracownicy i badacze

Tutaj znajdziesz osoby i organizacje zaangażowane w to badanie.

Śledczy

  • Główny śledczy: Enas Fawzy Youssf, Professor of physical therapy, Cairo university

Publikacje i pomocne linki

Osoba odpowiedzialna za wprowadzenie informacji o badaniu dobrowolnie udostępnia te publikacje. Mogą one dotyczyć wszystkiego, co jest związane z badaniem.

Przydatne linki

Daty zapisu na studia

Daty te śledzą postęp w przesyłaniu rekordów badań i podsumowań wyników do ClinicalTrials.gov. Zapisy badań i zgłoszone wyniki są przeglądane przez National Library of Medicine (NLM), aby upewnić się, że spełniają określone standardy kontroli jakości, zanim zostaną opublikowane na publicznej stronie internetowej.

Główne daty studiów

Rozpoczęcie studiów (Szacowany)

23 maja 2026

Zakończenie podstawowe (Szacowany)

15 grudnia 2026

Ukończenie studiów (Szacowany)

15 stycznia 2027

Daty rejestracji na studia

Pierwszy przesłany

20 maja 2026

Pierwszy przesłany, który spełnia kryteria kontroli jakości

20 maja 2026

Pierwszy wysłany (Rzeczywisty)

27 maja 2026

Aktualizacje rekordów badań

Ostatnia wysłana aktualizacja (Rzeczywisty)

27 maja 2026

Ostatnia przesłana aktualizacja, która spełniała kryteria kontroli jakości

20 maja 2026

Ostatnia weryfikacja

1 maja 2026

Więcej informacji

Terminy związane z tym badaniem

Inne numery identyfikacyjne badania

  • BFR vs pilates in SAIS

Plan dla danych uczestnika indywidualnego (IPD)

Planujesz udostępniać dane poszczególnych uczestników (IPD)?

NIEZDECYDOWANY

Informacje o lekach i urządzeniach, dokumenty badawcze

Bada produkt leczniczy regulowany przez amerykańską FDA

Nie

Bada produkt urządzenia regulowany przez amerykańską FDA

Nie

Te informacje zostały pobrane bezpośrednio ze strony internetowej clinicaltrials.gov bez żadnych zmian. Jeśli chcesz zmienić, usunąć lub zaktualizować dane swojego badania, skontaktuj się z register@clinicaltrials.gov. Gdy tylko zmiana zostanie wprowadzona na stronie clinicaltrials.gov, zostanie ona automatycznie zaktualizowana również na naszej stronie internetowej .

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