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Clinical Trials/NCT07590128
NCT07590128CompletedNot Applicable

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

Benha University1 site in 1 country6 target enrollmentStarted: January 2, 2026Last updated:
Conditions
Interventions

Trial Snapshot

Phase
Not Applicable
Status
Completed
Enrollment
6
Locations
1
Primary Endpoint
Change from Baseline in Knee Pain Intensity on the Visual Analog Scale (VAS)

Study Overview

Brief Summary

This pilot study evaluates the preliminary effectiveness of a combined rehabilitation program incorporating hold-relax (H-R) stretching techniques and progressive therapeutic exercises on knee pain and range of motion (ROM) in adolescent athletes diagnosed with Osgood-Schlatter disease. Utilizing a retrospective, single-group pre-post design on a cohort of six athletic participants, this study aims to generate preliminary clinical evidence and assess feasibility to inform future larger-scale randomized controlled trials. Participants underwent a structured, multi-week rehabilitation protocol, with primary clinical outcomes assessed before and after the intervention period using validated measures of pain intensity and knee joint mobility.

Study Design

Study Type
Interventional
Allocation
Na
Intervention Model
Single Group
Primary Purpose
Treatment
Masking
None

Eligibility Criteria

Ages
14 Years to 18 Years (Child, Adult)
Sex
Male
Accepts Healthy Volunteers
No

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

Arms & Interventions

Combined Rehabilitation and Hold-Relax Cohort

Active Comparator

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:

  • Hold-Relax stretching targeting the quadriceps and hamstring muscle groups to reduce tensile stress on the tibial tuberosity.
  • Progressive therapeutic exercises focusing on lower extremity strengthening, load tolerance, and functional biomechanics.

Intervention: Hold-Relax Proprioceptive Neuromuscular Facilitation (PNF) (Behavioral)

Combined Rehabilitation and Hold-Relax Cohort

Active Comparator

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:

  • Hold-Relax stretching targeting the quadriceps and hamstring muscle groups to reduce tensile stress on the tibial tuberosity.
  • Progressive therapeutic exercises focusing on lower extremity strengthening, load tolerance, and functional biomechanics.

Intervention: Progressive Rehabilitation Program (Behavioral)

Outcomes

Primary Outcomes

Change from Baseline in Knee Pain Intensity on the Visual Analog Scale (VAS)

Time Frame: Baseline (Day 1, pre-intervention) and post-intervention (Week 10, immediately following completion of the last rehabilitation session).

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.

Secondary Outcomes

  • Change from Baseline in Active Knee Flexion Range of Motion(Baseline (Day 1, pre-intervention) and post-intervention (Week 10, immediately following completion of the last rehabilitation session).)

Investigators

Sponsor Class
Other
Responsible Party
Principal Investigator
Principal Investigator

Adel Farag Al Kholy

Professor of Medical Biochemistry

Benha University

Study Sites (1)

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