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Validity and Reliability of Mixed Reality-Based Functional Mobility Tests in Type 2 Diabetes

11. června 2026 aktualizováno: Mehmet Kaan ALTUNOK, Selcuk University

Validity and Reliability of the Mixed Reality Adaptation of the 6-Minute Walk, Timed Up and Go, and Five-Repetition Sit-to-Stand Tests in Individuals With Type 2 Diabetes Mellitus

Type 2 Diabetes Mellitus (T2DM) is a multifaceted metabolic disease associated not only with impaired glycemic control but also with reductions in muscle strength, balance, functional mobility, and walking performance. Individuals with T2DM may experience impairments in lower extremity function, postural control, and overall functional performance, which can negatively affect activities of daily living and quality of life. Therefore, the assessment of functional performance using reliable and valid methods is important for clinical monitoring and rehabilitation planning.

The 6-Minute Walk Test (6MWT), Timed Up and Go Test (TUG), and Five-Repetition Sit-to-Stand Test (5xSTS) are widely used clinical assessments for evaluating walking capacity, functional mobility, lower extremity function, and physical performance in individuals with T2DM. Previous studies have demonstrated that these tests provide reliable and clinically meaningful measurements in this population.

In recent years, virtual and mixed reality technologies have provided opportunities to conduct assessments in a more objective, standardized, and user-friendly manner. These technologies also offer important advantages, including real-time data collection, enhanced user interaction, and potential integration into future remote assessment applications. However, evidence regarding the measurement properties of mixed reality-based adaptations of commonly used functional performance tests in individuals with T2DM remains limited.

The aim of this study is to evaluate the validity and reliability of mixed reality-based adaptations of the 6-Minute Walk Test, Timed Up and Go Test, and Five-Repetition Sit-to-Stand Test developed using the Meta Quest 3 platform. In addition, convergent validity will be examined by investigating the relationships between outcomes obtained from the mixed reality-based assessments and measures of knee extensor muscle strength and handgrip strength.

The findings of this study are expected to contribute to the development of innovative, safe, standardized, and digital approaches for assessing functional performance in individuals with Type 2 Diabetes Mellitus. Furthermore, the results may provide a scientific foundation for future digital health applications and remote assessment strategies.

Přehled studie

Typ studie

Pozorovací

Zápis (Odhadovaný)

75

Kontakty a umístění

Tato část poskytuje kontaktní údaje pro ty, kteří studii provádějí, a informace o tom, kde se tato studie provádí.

Studijní kontakt

Studijní místa

    • Selcuklu
      • Konya, Selcuklu, Turecko (Türkiye), 42130
        • Nábor
        • Selcuk University, Faculty of Health Sciences, Department of Physiotherapy and Rehabilitation
        • Kontakt:

Kritéria účasti

Výzkumníci hledají lidi, kteří odpovídají určitému popisu, kterému se říká kritéria způsobilosti. Některé příklady těchto kritérií jsou celkový zdravotní stav osoby nebo předchozí léčba.

Kritéria způsobilosti

Věk způsobilý ke studiu

  • Dospělý
  • Starší dospělý

Přijímá zdravé dobrovolníky

Ne

Metoda odběru vzorků

Vzorek nepravděpodobnosti

Studijní populace

Adults aged 18-65 years diagnosed with Type 2 Diabetes Mellitus who are able to ambulate independently, are clinically stable, and are eligible to participate in conventional and mixed reality-based functional performance assessments.

Popis

Inclusion Criteria:

  • Diagnosed with Type 2 Diabetes Mellitus by a physician,
  • Aged between 18 and 65 years,
  • Ability to ambulate independently without the use of an assistive device,
  • No participation in a structured exercise program within the previous 6 months,
  • Cognitive ability sufficient to understand and follow test instructions,
  • Visual, auditory, and vestibular functions sufficient to tolerate mixed reality applications,
  • Ability to read, understand, and follow instructions in Turkish,
  • Willingness to participate voluntarily in the study and provision of written informed consent.

Exclusion Criteria:

  • Presence of proliferative diabetic retinopathy or severe non-proliferative diabetic retinopathy,
  • Advanced peripheral neuropathy, active foot ulcer, Charcot foot, or significant sensory loss that may compromise safe test performance,
  • Presence of peripheral arterial disease,
  • Advanced renal failure, requirement for dialysis, or nephropathy that may compromise exercise safety,
  • Myocardial infarction within the previous 6 months,
  • Unstable ischemic heart disease or uncontrolled angina,
  • Resting blood pressure greater than 160/100 mmHg,
  • Presence of severe musculoskeletal, neurological, or vestibular disorders that may interfere with safe test performance,
  • High risk of balance loss or spatial disorientation in the mixed reality environment due to visual, auditory, or balance impairments,
  • Cognitive, behavioral, or compliance-related problems that may prevent completion of the study procedures.

Studijní plán

Tato část poskytuje podrobnosti o studijním plánu, včetně toho, jak je studie navržena a co studie měří.

Jak je studie koncipována?

Detaily designu

Kohorty a intervence

Skupina / kohorta
Intervence / Léčba
Individuals with Type 2 Diabetes Mellitus
Adults aged 18-65 years diagnosed with Type 2 Diabetes Mellitus who will undergo conventional and mixed reality-based assessments of functional performance, including the 6-Minute Walk Test, Timed Up and Go Test, and Five-Repetition Sit-to-Stand Test. Additional assessments of knee extensor muscle strength and handgrip strength will be performed to evaluate convergent validity.
Participants will perform mixed reality-based adaptations of the 6-Minute Walk Test (6MW-MR), Timed Up and Go Test (TUG-MR), and Five-Repetition Sit-to-Stand Test (5xSTS-MR) developed for the Meta Quest 3 platform. The mixed reality environment digitally replicates the conventional test setups and provides standardized visual guidance while allowing participants to interact safely with the real environment. Test outcomes will be automatically recorded by the system and compared with conventional clinical assessments to evaluate validity. The mixed reality-based tests will be repeated one week later to assess test-retest reliability.

Co je měření studie?

Primární výstupní opatření

Měření výsledku
Popis opatření
Časové okno
6-Minute Walk Test - Mixed Reality (6MW-MR)
Časové okno: Baseline and 1-week follow-up
Functional exercise capacity and walking endurance will be assessed using a mixed reality-based adaptation of the 6-Minute Walk Test. Walking distance will be recorded in meters, with greater distances indicating better performance. Validity will be evaluated by comparison with the conventional 6-Minute Walk Test, and reliability will be assessed using repeated measurements performed one week apart.
Baseline and 1-week follow-up
Timed Up and Go Test - Mixed Reality (TUG-MR)
Časové okno: Baseline and 1-week follow-up
Functional mobility will be assessed using a mixed reality-based adaptation of the Timed Up and Go Test. Test completion time will be recorded in seconds, with shorter times indicating better functional mobility. Validity and reliability will be evaluated through comparison with the conventional Timed Up and Go Test and repeated measurements.
Baseline and 1-week follow-up
Five-Repetition Sit-to-Stand Test - Mixed Reality (5xSTS-MR)
Časové okno: Baseline and 1-week follow-up
Lower extremity functional performance will be assessed using a mixed reality-based adaptation of the Five-Repetition Sit-to-Stand Test. Test duration will be recorded in seconds, with shorter times indicating better performance. Validity and reliability will be evaluated through comparison with the conventional Five-Repetition Sit-to-Stand Test and repeated measurements.
Baseline and 1-week follow-up

Sekundární výstupní opatření

Měření výsledku
Popis opatření
Časové okno
Participant Satisfaction
Časové okno: Baseline
Participant satisfaction with conventional and mixed reality-based assessments will be evaluated using a 10-point visual analog scale ranging from 1 to 10, with higher scores indicating greater satisfaction.
Baseline
6-Minute Walk Test - Conventional
Časové okno: Baseline
Walking distance measured during the conventional 6-Minute Walk Test will be used as a reference measure for concurrent validity analyses. Greater distances indicate better functional exercise capacity.
Baseline
Timed Up and Go Test - Conventional
Časové okno: Baseline
The conventional Timed Up and Go Test will be administered to assess functional mobility and will serve as a reference measure for validity analyses. Test completion time will be recorded in seconds, with shorter times indicating better functional mobility.
Baseline
Five-Repetition Sit-to-Stand Test - Conventional
Časové okno: Baseline
The conventional Five-Repetition Sit-to-Stand Test will be used as a reference measure for validity analyses. Test completion time will be recorded in seconds, with shorter times indicating better lower extremity functional performance.
Baseline
Knee Extensor Muscle Strength
Časové okno: Baseline
Knee extensor muscle strength will be measured using a handheld digital dynamometer. Maximum voluntary contraction values will be recorded, with higher values indicating greater muscle strength. Outcomes will be analyzed for convergent validity with mixed reality-based test results.
Baseline
Handgrip Strength
Časové okno: Baseline
Handgrip strength will be assessed using a hand dynamometer. The highest value obtained from repeated trials will be recorded, with higher values indicating greater muscle strength. Outcomes will be analyzed for convergent validity with mixed reality-based test results.
Baseline

Spolupracovníci a vyšetřovatelé

Zde najdete lidi a organizace zapojené do této studie.

Vyšetřovatelé

  • Studijní židle: Gülşah ÖZSOY, Assist. Prof. Dr., Selcuk University, Faculty of Health Sciences, Department of Physiotherapy and Rehabilitation, Konya, Türkiye
  • Studijní židle: Zehra KORKUT, Assist. Prof. Dr., Selcuk University, Faculty of Health Sciences, Department of Physiotherapy and Rehabilitation, Konya, Türkiye
  • Studijní židle: İsmail ÖZSOY, Assoc. Prof. Dr., Selcuk University, Faculty of Health Sciences, Department of Physiotherapy and Rehabilitation, Konya, Türkiye
  • Studijní židle: Mehmet A GÜLER, PhD, Selcuk University, Faculty of Health Sciences, Department of Physiotherapy and Rehabilitation, Konya, Türkiye
  • Studijní židle: İhsan KODAK, Assist. Prof. Dr., Kırşehir Ahi Evran University, School of Physical Therapy and Rehabilitation, Kırşehir, Türkiye
  • Studijní židle: Yasemin GEDİKLİ ERTÜRK, PhD (c) in PT, Selcuk University, Faculty of Health Sciences, Department of Physiotherapy and Rehabilitation, Konya, Türkiye
  • Studijní židle: Selma Ö ÇELİKDELEN, Assist. Prof. Dr., Konya City Hospital

Publikace a užitečné odkazy

Osoba odpovědná za zadávání informací o studiu tyto publikace poskytuje dobrovolně. Mohou se týkat čehokoli, co souvisí se studiem.

Obecné publikace

Termíny studijních záznamů

Tato data sledují průběh záznamů studie a předkládání souhrnných výsledků na ClinicalTrials.gov. Záznamy ze studií a hlášené výsledky jsou před zveřejněním na veřejné webové stránce přezkoumány Národní lékařskou knihovnou (NLM), aby se ujistily, že splňují specifické standardy kontroly kvality.

Hlavní termíny studia

Začátek studia (Aktuální)

10. června 2026

Primární dokončení (Odhadovaný)

30. prosince 2026

Dokončení studie (Odhadovaný)

10. května 2027

Termíny zápisu do studia

První předloženo

11. června 2026

První předloženo, které splnilo kritéria kontroly kvality

11. června 2026

První zveřejněno (Aktuální)

16. června 2026

Aktualizace studijních záznamů

Poslední zveřejněná aktualizace (Aktuální)

16. června 2026

Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality

11. června 2026

Naposledy ověřeno

1. června 2026

Více informací

Termíny související s touto studií

Plán pro data jednotlivých účastníků (IPD)

Plánujete sdílet data jednotlivých účastníků (IPD)?

NE

Informace o lécích a zařízeních, studijní dokumenty

Studuje lékový produkt regulovaný americkým FDA

Ne

Studuje produkt zařízení regulovaný americkým úřadem FDA

Ne

Tyto informace byly beze změn načteny přímo z webu clinicaltrials.gov. Máte-li jakékoli požadavky na změnu, odstranění nebo aktualizaci podrobností studie, kontaktujte prosím register@clinicaltrials.gov. Jakmile bude změna implementována na clinicaltrials.gov, bude automaticky aktualizována i na našem webu .

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