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Anti-Gravity Treadmill Gait Training for Knee Osteoarthritis

4 settembre 2026 aggiornato da: Piotr Pastyrzak, University of Rzeszow

Evaluation of the Effectiveness of Traditional Physiotherapy Supported by Gait Re-education Using the R-Force Anti-Gravity Treadmill in Patients With Knee Osteoarthritis - Randomized Clinical Trial

Purpose: The aim of the study will be to evaluate the effectiveness of traditional physiotherapy supported by gait re-education using the R-Force bodyweight-supported treadmill in improving gait parameters, range of motion, knee joint function, quality of life, and body composition in patients with knee osteoarthritis. The study will be conducted in the form of a prospective, randomized clinical trial with participants divided into two therapeutic groups: a control group and an experimental group. The therapeutic program will last 4 weeks and will be implemented 3 times a week. Changes in gait parameters, range of motion, knee joint function, quality of life, and body composition will be evaluated.Material: The study will include patients ≥ 40 years of age with knee osteoarthritis (Kellgren-Lawrence grade 2 or 3), confirmed radiologically, reporting pain lasting ≥ 3 months. Participants (n = 80) will be randomly assigned to the control group (conventional physiotherapy) or the experimental group (conventional physiotherapy + training on the R-Force treadmill).Methods: Participants will be assessed at three time points: before the intervention (baseline), after completing the 4-week therapeutic program (postintervention), and after 8 weeks (follow-up). The methods used will include: analysis of gait parameters on the R-Force treadmill, 6-Minute Walk Test (6MWT), Timed Up and Go (TUG) test, measurements of knee joint range of motion using a goniometer, thigh and lower leg circumference measurements, body composition analysis using the BIA method, subjective pain assessment using the Visual Analog Scale (VAS) and Laitinen scale, pressure pain threshold assessment using a digital algometer, functional assessment using the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) and Knee Injury and Osteoarthritis Outcome Score (KOOS) questionnaires, quality of life assessment (WHOQOL-BREF), Hospital Anxiety and Depression Scale (HADS), as well as assessment of periarticular structures using ultrasound.

Panoramica dello studio

Stato

Reclutamento

Condizioni

Intervento / Trattamento

Tipo di studio

Interventistico

Iscrizione (Stimato)

80

Fase

  • Non applicabile

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Contatto studio

Luoghi di studio

    • Podkarpackie Voivodeship
      • Sanok, Podkarpackie Voivodeship, Polonia, 35-800
        • Reclutamento
        • Centrum Rehabilitacji niemowląt, dzieci i dorosłych SensoReh Karolina Banaś - Pastyrzak,
        • Contatto:

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

  • Adulto
  • Adulto più anziano

Accetta volontari sani

No

Descrizione

Inclusion Criteria:

  • Radiologically confirmed knee osteoarthritis (grade 2 or 3 according to the Kellgren-Lawrence classification).
  • General health and functional status allowing participation in the physical therapy program (based on clinical assessment).
  • Knee joint pain persisting for at least 3 months, with an intensity of >= 4 on the Visual Analog Scale (VAS).
  • Age between 40 and 70 years.
  • Ability to ambulate independently without any orthopedic assistive devices.
  • Voluntary written informed consent to participate in the study.
  • No medical contraindications to physical exercise.

Exclusion Criteria:

  • Knee osteoarthritis grade 4 according to the Kellgren-Lawrence classification or lack of radiological changes (grade 0-1).
  • History of total or partial knee arthroplasty (joint replacement).
  • Contraindications to body composition analysis (e.g., implanted pacemaker, electronic implants, epilepsy).
  • Knee joint instability (e.g., ligamentous injury).
  • Acute joint inflammation.
  • Neuropathies, myopathies, or other neurological conditions affecting gait.
  • Active neoplastic diseases (cancer) or advanced cardiovascular diseases.
  • Participation in other clinical trials within the last 6 months.
  • Participation in another physical therapy or rehabilitation program within the last 6 months.
  • Planned intra-articular injections or injections received in the affected knee joint within the last 3 months.
  • Regular use of analgesic or anti-inflammatory drugs (NSAIDs, corticosteroids) at doses that could affect the assessment of pain and function.

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Trattamento
  • Assegnazione: Randomizzato
  • Modello interventistico: Assegnazione parallela
  • Mascheramento: Nessuno (etichetta aperta)

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Sperimentale: Experimental Group
Patients in this group will receive a comprehensive 4-week therapeutic program, 3 times a week. The intervention combines conventional physiotherapy with gait re-education and training on the R-Force bodyweight- supported anti-gravity treadmill. Each therapy session will last approximately 90 minutes.
A standard program consisting of targeted physical exercises, range of motion improvements, and strength conditioning for patients with knee osteoarthritis. Traditional physiotherapy will include isometric exercises, strengthening, stretching, balance exercises (with elements of proprioception training), active non-weight-bearing exercises, functional exercises, gait exercises, as well as breathing and relaxation exercises.
Gait re-education and body-weight-supported treadmill training using the R-Force anti-gravity treadmill to reduce joint loading during exercise.
Comparatore attivo: Control Group
Patients in this group will undergo a standard 4- week conventional physiotherapy program, 3 times a week. Each therapy session will last approximately 90 minutes.
A standard program consisting of targeted physical exercises, range of motion improvements, and strength conditioning for patients with knee osteoarthritis. Traditional physiotherapy will include isometric exercises, strengthening, stretching, balance exercises (with elements of proprioception training), active non-weight-bearing exercises, functional exercises, gait exercises, as well as breathing and relaxation exercises.

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Knee Injury and Osteoarthritis Outcome Score (KOOS)
Lasso di tempo: Baseline (before intervention), 4 weeks (immediately post-intervention), and 8 weeks (follow-up)
Change from baseline in knee joint function and symptoms using the KOOS questionnaire. The questionnaire assesses 5 subscales: Pain, Symptoms, Activities of Daily Living, Sport and Recreation Function, and Knee-related Quality of Life. Scores range from 0 to 100, where 100 indicates no symptoms and 0 indicates extreme symptoms.
Baseline (before intervention), 4 weeks (immediately post-intervention), and 8 weeks (follow-up)
Gait Parameters - Stride Length
Lasso di tempo: Baseline (before intervention), 4 weeks (immediately post-intervention), and 8 weeks (follow-up)
Change from baseline in mean stride length (measured in centimeters) during treadmill walking, evaluated using the built-in spatio-temporal analysis system of the R-Force treadmill.
Baseline (before intervention), 4 weeks (immediately post-intervention), and 8 weeks (follow-up)

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Subjective Pain Assessment using Visual Analog Scale (VAS)
Lasso di tempo: Baseline (before intervention), 4 weeks (immediately post-intervention), and 8 weeks (follow-up)
Change from baseline in self-reported knee pain intensity during movement using a 100 mm Visual Analog Scale, where 0 mm represents "no pain" and 100 mm represents "worst imaginable pain"
Baseline (before intervention), 4 weeks (immediately post-intervention), and 8 weeks (follow-up)
Functional Walking Capacity via 6-Minute Walk Test (6MWT)
Lasso di tempo: Baseline (before intervention), 4 weeks (immediately post-intervention), and 8 weeks (follow-up)
Change from baseline in the maximum distance (measured in meters) that a participant can walk quickly on a flat, hard surface in a period of 6 minutes.
Baseline (before intervention), 4 weeks (immediately post-intervention), and 8 weeks (follow-up)
Mobility and Balance via Timed Up and Go (TUG) Test
Lasso di tempo: Baseline (before intervention), 4 weeks (immediately post-intervention), and 8 weeks (follow-up)
Change from baseline in the time (measured in seconds) taken by a participant to rise from a chair, walk 3 meters, turn around, walk back to the chair, and sit down.
Baseline (before intervention), 4 weeks (immediately post-intervention), and 8 weeks (follow-up)
Knee Joint Range of Motion (ROM)
Lasso di tempo: Baseline (before intervention), 4 weeks (immediately post-intervention), and 8 weeks (follow-up)
Change from baseline in active and passive knee joint flexion and extension angles, measured in degrees using a standard universal goniometer
Baseline (before intervention), 4 weeks (immediately post-intervention), and 8 weeks (follow-up)
Pressure Pain Threshold (PPT)
Lasso di tempo: Baseline (before intervention), 4 weeks (immediately post-intervention), and 8 weeks (follow-up)
Change from baseline in pressure pain threshold at standardized periarticular sites around the knee, measured in kilograms per square centimeter (kg/cm2) using a digital pressure algometer.
Baseline (before intervention), 4 weeks (immediately post-intervention), and 8 weeks (follow-up)
Ultrasound Assessment of Periarticular Structures
Lasso di tempo: Baseline (before intervention), 4 weeks (immediately post-intervention), and 8 weeks (follow-up)
Change from baseline in structural features of periarticular tissues (such as joint effusion volume, synovial thickness, or tendon presentation) evaluated qualitatively and quantitatively via knee ultrasonography
Baseline (before intervention), 4 weeks (immediately post-intervention), and 8 weeks (follow-up)

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Effettivo)

5 gennaio 2026

Completamento primario (Stimato)

31 dicembre 2026

Completamento dello studio (Stimato)

30 giugno 2027

Date di iscrizione allo studio

Primo inviato

4 settembre 2026

Primo inviato che soddisfa i criteri di controllo qualità

4 settembre 2026

Primo Inserito (Effettivo)

10 settembre 2026

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

10 settembre 2026

Ultimo aggiornamento inviato che soddisfa i criteri QC

4 settembre 2026

Ultimo verificato

1 maggio 2026

Maggiori informazioni

Termini relativi a questo studio

Altri numeri di identificazione dello studio

  • Resolution No. 4/12/2025/W

Piano per i dati dei singoli partecipanti (IPD)

Hai intenzione di condividere i dati dei singoli partecipanti (IPD)?

NO

Descrizione del piano IPD

Individual participant data will not be made publicly available due to institutional data protection regulations, patient privacy restrictions, and the scope of the doctoral research project. Aggregate data and study findings will be disseminated exclusively through peer-reviewed scientific publications and conference presentations

Informazioni su farmaci e dispositivi, documenti di studio

Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti

No

Studia un dispositivo regolamentato dalla FDA degli Stati Uniti

No

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .