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Validity and Reliability of the 2-Minute Step Test in Patients With Lipedema

4. august 2026 opdateret af: Istanbul Physical Medicine Rehabilitation Training and Research Hospital

Construct Validity and Reliability of the 2-Minute Step Test in Patients With Lipedema: A Cross-Sectional Study

Lipedema is a chronic, progressive adipose tissue disorder that predominantly affects women and is characterized by symmetric, disproportionate subcutaneous fat accumulation in the lower extremities, pain, tenderness, and easy bruising. It is associated with reduced mobility and impaired functional capacity. Although the 2-Minute Step Test (2MST) is a practical, low-cost measure of functional capacity that requires no equipment or large space, its validity and reliability have not been investigated in patients with lipedema. The aim of this study is to evaluate the construct validity and test-retest reliability of the 2MST in women with lipedema.

Studieoversigt

Status

Ikke rekrutterer endnu

Betingelser

Detaljeret beskrivelse

This prospective, cross-sectional study will enroll 55 women diagnosed with lipedema (stage 2 and above) according to the Wold and Halk-Damstra criteria. Participants will undergo the 2-Minute Step Test (2MST), the 6-Minute Walk Test (6MWT), the Timed Up and Go Test (TUGT), the Visual Analog Scale (VAS) for pain, and the Lower Extremity Functional Scale (LEFS). Vital signs (blood pressure, oxygen saturation, heart rate) will be checked before testing. Tests will be administered in a fixed order (2MST, then 6MWT, then TUGT) with at least 30 minutes of rest between them, by the same examiner, at similar times of day. To assess test-retest reliability, the 2MST will be repeated after a 7-day interval by the same examiner. Reliability will be evaluated using the intraclass correlation coefficient (ICC) with 95% confidence intervals, standard error of measurement (SEM), and minimum detectable change (MDC95). Construct validity will be evaluated using Spearman correlation coefficients between the 2MST and the 6MWT, TUGT, LEFS, and VAS.

Undersøgelsestype

Observationel

Tilmelding (Anslået)

55

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

N/A

Prøveudtagningsmetode

Ikke-sandsynlighedsprøve

Studiebefolkning

Patients with lipedema

Beskrivelse

Inclusion Criteria:

  • Clinically diagnosed with lipedema according to the Wold and Halk-Damstra criteria, stage 2 and above
  • Aged 18-65 years, female
  • No walking-limiting pathology
  • Willing to participate

Exclusion Criteria:

  • Uncontrolled hypertension
  • Decompensated cardiac failure
  • Systemic, degenerative, neurological, rheumatological, or orthopedic disease affecting lower-extremity function
  • Lower-extremity surgery within the past 6 months
  • Peripheral artery disease causing vascular claudication
  • Severe psychiatric disorder (active psychosis, severe major depression) or cognitive impairment preventing compliance with test instructions
  • Neuromuscular disease
  • Pregnancy
  • Advanced-stage lipo-lymphedema severely restricting ambulation

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
2-Minute Step Test (2MST)
Tidsramme: Baseline
Functional exercise capacity assessed by the number of times the participant raises the knee to the required height during 2 minutes. Higher scores indicate better functional exercise capacity.
Baseline

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
6-Minute Walk Test (6MWT)
Tidsramme: Baseline
Functional exercise capacity assessed by the total distance walked in 6 minutes (meters). Greater walking distance indicates better functional capacity and endurance.
Baseline
Timed Up and Go Test (TUGT)
Tidsramme: Baseline
Functional mobility assessed by the time required to stand up from a chair, walk 3 meters, turn around, walk back, and sit down (seconds). Longer completion times indicate poorer functional mobility and balance.
Baseline
Lower Extremity Functional Scale (LEFS)
Tidsramme: Baseline
Self-reported lower extremity function assessed using a 20-item questionnaire with a total score ranging from 0 to 80. Higher scores indicate better lower extremity function and less disability.
Baseline
Visual Analog Scale (VAS)
Tidsramme: Baseline
Pain intensity assessed using a 100-mm visual analog scale ranging from 0 (no pain) to 100 (worst imaginable pain). Higher scores indicate greater pain intensity.
Baseline

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Istanbul Physical Medicine Rehabilitation Training and Research Hospital

Efterforskere

  • Ledende efterforsker: Nurdan Paker, Prof, Istanbul Physical Medicine Rehabilitation Training and Research Hospital

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Anslået)

10. august 2026

Primær færdiggørelse (Anslået)

10. april 2027

Studieafslutning (Anslået)

10. april 2027

Datoer for studieregistrering

Først indsendt

4. august 2026

Først indsendt, der opfyldte QC-kriterier

4. august 2026

Først opslået (Faktiske)

7. august 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

7. august 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

4. august 2026

Sidst verificeret

1. august 2026

Mere information

Begreber relateret til denne undersøgelse

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • Istftreah15

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

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