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Combined Physical Therapy and Hold-Relax Technique for Adolescent Osgood-Schlatter Knee Pain

11. mai 2026 oppdatert av: Adel Farag Al Kholy, Benha University

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

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.

Studieoversikt

Status

Fullført

Forhold

Intervensjon / Behandling

Studietype

Intervensjonell

Registrering (Faktiske)

6

Fase

  • Ikke aktuelt

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiesteder

  • Algerie
    • Batna
      • Batna City, Batna, Algerie, 05078
        • Batna 2 University

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

  • Barn
  • Voksen

Tar imot friske frivillige

Nei

Beskrivelse

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

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Behandling
  • Tildeling: N/A
  • Intervensjonsmodell: Enkeltgruppeoppdrag
  • Masking: Ingen (Open Label)

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Aktiv komparator: 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:

  • 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.
Atferdsmessig: Hold-Relax Proprioceptive Neuromuscular Facilitation (PNF)

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

Atferdsmessig: Progressive Rehabilitation Program
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

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Change from Baseline in Knee Pain Intensity on the Visual Analog Scale (VAS)
Tidsramme: 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.
Baseline (Day 1, pre-intervention) and post-intervention (Week 10, immediately following completion of the last rehabilitation session).

Sekundære resultatmål

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

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).

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Benha University

Etterforskere

  • Hovedetterforsker: Mahmoud El sayed, Bachelor of Physical Therapy, Benha University
  • Hovedetterforsker: Ahmed Said, Bachelor of Physical Therapy, Benha University

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

2. januar 2026

Primær fullføring (Faktiske)

30. mars 2026

Studiet fullført (Faktiske)

15. april 2026

Datoer for studieregistrering

Først innsendt

11. mai 2026

Først innsendt som oppfylte QC-kriteriene

11. mai 2026

Først lagt ut (Faktiske)

15. mai 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

15. mai 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

11. mai 2026

Sist bekreftet

1. mai 2026

Mer informasjon

Begreper knyttet til denne studien

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • SKE 05/2026

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

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