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Kropssammensætning hos unge med anorexia nervosa (COCOMETANNER)

5. november 2026 opdateret af: Istituto Auxologico Italiano

Kropssammensætning, hvilende energiforbrug og fysisk aktivitet hos unge med anorexia nervosa

Body Mass Index (BMI) is currently the most widely recommended parameter for identifying underweight subjects. Among eating disorder diseases, anorexia nervosa (AN) is the one with the highest mortality rate and with relapses between 12 and 27%. To date, recovery programs allow approximately 40% of subjects to achieve recovery, 30% demonstrate improvements, and 20% remain chronically affected. These data demonstrate the importance of continuously monitoring changes in weight and body composition of these subjects. Bioelectrical impedance (BIA) is widely used to determine body composition in AN. BIA provides various parameters, such as lean mass (LM), fat mass (FM), total body water (TBW), and phase angle (PhA). Among these parameters, in addition to LM and FM, PhA has also been used to characterize underweight subjects with AN. In addition to the observed relationship between PhA and body composition in individuals with AN, PhA has also been related to the basal metabolic rate (BMR). BMR undergoes changes mainly due to loss of muscle mass and a significant reduction in BMR has been observed in AN subjects. Finally, physical activity represents a significant determinant of body composition and can help regulate BMR.

Therefore, monitoring changes in body composition (LM, FM, and PhA) and indirect indices (lean mass index and fat mass index) using BIA, together with monitoring changes in BMR and physical activity level, could provide important support for the continuous control and definition of the clinical stage of the disease in patients with AN.

The aim of this study is to determine body composition, basal metabolic rate, and level of physical activity in Anorexia Nervosa and normal weight subjects to identify the most consistent parameters to define the clinical stage of the disease in subjects with AN.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Body Mass Index (BMI) is currently the most widely recommended parameter for identifying underweight subjects. Among eating disorder diseases, anorexia nervosa (AN) is the one with the highest mortality rate and with relapses between 12 and 27%. To date, recovery programs allow approximately 40% of subjects to achieve recovery, 30% demonstrate improvements, and 20% remain chronically affected. These data demonstrate the importance of continuously monitoring changes in weight and body composition of these subjects. Bioelectrical impedance (BIA) is widely used to determine body composition in AN. BIA provides various parameters, such as lean mass (LM), fat mass (FM), total body water (TBW), and phase angle (PhA). Among these parameters, in addition to LM and FM, PhA has also been used to characterize underweight subjects with AN. In addition to the observed relationship between PhA and body composition in individuals with AN, PhA has also been related to the basal metabolic rate (BMR). BMR undergoes changes mainly due to loss of muscle mass and a significant reduction in BMR has been observed in AN subjects. Finally, physical activity represents a significant determinant of body composition and can help regulate BMR.

Therefore, monitoring changes in body composition (LM, FM, and PhA) and indirect indices (lean mass index and fat mass index) using BIA, together with monitoring changes in BMR and physical activity level, could provide important support for the continuous control and definition of the clinical stage of the disease in patients with AN.

The aim of this study is to determine body composition, basal metabolic rate, and level of physical activity in Anorexia Nervosa and normal weight subjects to identify the most consistent parameters to define the clinical stage of the disease in subjects with AN.

Undersøgelsestype

Observationel

Tilmelding (Faktiske)

32

Kontakter og lokationer

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

Studiesteder

    • Verbania
      • Oggebbio, Verbania, Italien, 28824
        • Istituto Auxologico Italiano IRCCS, Site Piancavallo

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

12 år til 18 år (Barn, Voksen)

Tager imod sunde frivillige

N/A

Køn, der er berettiget til at studere

Kvinde

Prøveudtagningsmetode

Ikke-sandsynlighedsprøve

Studiebefolkning

30 female adolescents with Anorexia nervosa, according to the diagnostic criteria of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5), hospitalized at the Division of Auxologia, San Giuseppe Hospital, Istituto Auxologico Italiano, IRCCS, Piancavallo, Italy

30 normal weight adolescents recruited at the Mountain Sports Study Center of the Department of Medicine, University of Udine, Italy

Beskrivelse

Adolescents with Anorexia Nervosa:

Inclusion Criteria:

  • Female sex
  • Age range: 12-18 years
  • Anorexia nervosa
  • Hospitalized at the Division of Auxologia, San Giuseppe Hospital, Istituto Auxologico Italiano, IRCCS, Piancavallo, Italy

Exclusion Criteria:

  • Absence of signed informed consent

Adolescents with normal weight:

Inclusion Criteria:

  • Female sex
  • Age range: 12-18 years
  • Normal weight

Exclusion Criteria:

  • Absence of signed informed consent

Studieplan

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

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Observationsmodeller: COHORT
  • Tidsperspektiver: CROSS_SECTIONAL

Kohorter og interventioner

Gruppe / kohorte
Intervention / Behandling
Anorexia Nervosa (AN)

Female adolescents with Anorexia Nervosa

Collection of anthropometric parameters biochemical parameters basal metabolic rate body composition questionnaires

Normal weight

Female normal weight adolescents

Collection of anthropometric parameters biochemical parameters basal metabolic rate body composition questionnaires

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Fat mass
Tidsramme: Baseline

Fat mass as assessed by bioelectrical impedance

Baseline
Fat-free mass
Tidsramme: Baseline

Fat-free mass as assessed by bioelectrical impedance

Baseline
Basal Metabolic Rate
Tidsramme: Baseline

Basal Metabolic Rate as calculated

Baseline

Samarbejdspartnere og efterforskere

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

Sponsor

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 (Faktiske)

12. juli 2024

Primær færdiggørelse (Faktiske)

22. juli 2026

Studieafslutning (Faktiske)

22. juli 2026

Datoer for studieregistrering

Først indsendt

24. januar 2025

Først indsendt, der opfyldte QC-kriterier

24. januar 2025

Først opslået (Faktiske)

30. januar 2025

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

6. november 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

5. november 2026

Sidst verificeret

1. november 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • 01C409

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

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