Combined Physical Therapy and Hold-Relax Technique for Adolescent Osgood-Schlatter Knee Pain
Exploratory Effects of a Combined Hold-Relax Technique and Progressive Rehabilitation Program on Knee Pain in Adolescent Athletes With Osgood-Schlatter Disease: A Pilot Study
Descripción general del estudio
Estado
Condiciones
Tipo de estudio
Inscripción (Actual)
Fase
- No aplica
Contactos y Ubicaciones
Ubicaciones de estudio
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Batna
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Batna City, Batna, Argelia, 05078
- Batna 2 University
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Criterios de participación
Criterio de elegibilidad
Edades elegibles para estudiar
- Niño
- Adulto
Acepta Voluntarios Saludables
Descripción
Inclusion Criteria:
- Clinical diagnosis of Osgood-Schlatter disease
- Presence of anterior knee pain localized at the tibial tuberosity
- Regular participation in sports involving running and jumping
- No participation in structured rehabilitation programs within the previous 3 months
Exclusion Criteria:
- History of knee surgery or major trauma
- Presence of other knee pathologies (e.g., ligament or meniscal injuries)
- Neurological or systemic disorders affecting movement
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Tratamiento
- Asignación: N / A
- Modelo Intervencionista: Asignación de un solo grupo
- Enmascaramiento: Ninguno (etiqueta abierta)
Armas e Intervenciones
Grupo de participantes/brazo |
Intervención / Tratamiento |
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Comparador activo: Combined Rehabilitation and Hold-Relax Cohort
A single experimental group of adolescent athletes diagnosed with Osgood-Schlatter Disease (OSD). All participants in this cohort receive a structured, multi-week progressive rehabilitation program combined with Hold-Relax (H-R) proprioceptive neuromuscular facilitation (PNF) stretching techniques. The intervention protocol consists of:
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A target-specific, manual stretching technique administered by a physical therapist to address muscular tightness in the lower extremity. The protocol focuses on the bilateral quadriceps and hamstring muscle groups to reduce the cumulative tensile traction forces exerted on the tibial tuberosity. For each target muscle group, the procedure is performed as follows: Passive Stretch: The physical therapist moves the joint to the limit of comfortable range of motion (ROM) where mild muscle tightness is felt. Isometric Contraction: The participant performs an active, sub-maximal isometric contraction (approximately 50% of maximum voluntary contraction) against the therapist's manual resistance for 6 to 10 seconds, ensuring no actual joint movement occurs. Relaxation and Deeper Passive Stretch: The participant is instructed to relax completely, and the therapist immediately moves the limb passively into a newly gained, deeper range of motion, holding the stati
A structured, step-by-step active exercise program designed to build lower-limb load tolerance, correct biomechanical compensations, and stabilize the knee joint complex.
The rehabilitation progresses systematically through targeted phases based on individual pain levels and movement quality:Phase 1 (Pain Mitigation and Muscle Activation): Focuses on isometric quadriceps setting, straight leg raises (SLR), gluteal bridging, and ankle/hip mobility exercises to avoid direct loading of the patellar tendon while minimizing disuse atrophy.Phase 2 (Strength and Load Tolerance): Introduces closed-kinetic chain exercises with controlled ranges of motion, including shallow wall sits, leg presses, bilateral squats, and progressive calf raises.Phase 3 (Eccentric and Functional Progression): Focuses on eccentric quadriceps strengthening (e.g., controlled step-downs) and sport-specific functional retraining to prepare the adolescent athlete's patellar tendon and tibial tubercle to absorb high groun
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¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
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Change from Baseline in Knee Pain Intensity on the Visual Analog Scale (VAS)
Periodo de tiempo: Baseline (Day 1, pre-intervention) and post-intervention (Week 10, immediately following completion of the last rehabilitation session).
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Knee pain during athletic activity is assessed using a 10-centimeter Visual Analog Scale (VAS). The scale is a horizontal line where 0 centimeters indicates "no pain" and 10 centimeters indicates "the worst possible pain." The outcome is calculated as the change in the pain score (post-intervention score minus baseline score). A negative change indicates an improvement (reduction) in knee pain. |
Baseline (Day 1, pre-intervention) and post-intervention (Week 10, immediately following completion of the last rehabilitation session).
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Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
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Change from Baseline in Active Knee Flexion Range of Motion
Periodo de tiempo: Baseline (Day 1, pre-intervention) and post-intervention (Week 10, immediately following completion of the last rehabilitation session).
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Active knee joint flexion range of motion measured in degrees of joint angle using a standard universal goniometer. The participant lies in a supine position and actively bends the knee as far as possible. The outcome is calculated as the change in degrees from baseline to post-intervention. An increase in degrees indicates an improved range of motion. |
Baseline (Day 1, pre-intervention) and post-intervention (Week 10, immediately following completion of the last rehabilitation session).
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Colaboradores e Investigadores
Patrocinador
Investigadores
- Investigador principal: Mahmoud El sayed, Bachelor of Physical Therapy, Benha University
- Investigador principal: Ahmed Said, Bachelor of Physical Therapy, Benha University
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio (Actual)
Finalización primaria (Actual)
Finalización del estudio (Actual)
Fechas de registro del estudio
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Actual)
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Más información
Términos relacionados con este estudio
Términos MeSH relevantes adicionales
Otros números de identificación del estudio
- SKE 05/2026
Información sobre medicamentos y dispositivos, documentos del estudio
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