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Influence of Exercise Therapy on Insulin Resistance in Patients With Heart Failure

8. desember 2013 oppdatert av: Bert Op't Eijnde, Hasselt University

The purpose of this study is to investigate the effects of a combined training programme on insulin resistance, exercise tolerance, muscle strength, body composition and cardiac function in chronic heart failure patients.

It is assumed that the above mentioned clinical parameters will improve due to physical exercise.

Studieoversikt

Status

Fullført

Forhold

Intervensjon / Behandling

Detaljert beskrivelse

  1. Background and study aims During the last decades, the prevalence of (pre)diabetes but also of chronic heart failure (CHF) has increased dramatically. Somehow, both conditions are linked, but the mechanisms involved have not been completely clarified yet. It is clear that the presence of (pre)diabetes in CHF patients affects morbidity and mortality. Although feasibility, safety and beneficial effects of exercise training in CHF are generally acknowledged, its effects on insulin resistance are not well understood. Therefore, the presented study aims to investigate the effect of ET on insulin resistance and the possible link with cardiac function, exercise tolerance, muscle strength and body composition in CHF patients.

  2. What does the study involve?

    A randomized controlled study (n=30) will be performed over a period of 12 weeks. Following study inclusion, baseline measurements will be performed in 1 week. They include:

    • a maximal exercise test on a bicycle ergometer to assess exercise tolerance,
    • two oral glucose tolerance tests to assess fasting and post-exercise insulin resistance,
    • a venous blood sample to determine HbA1c, blood lipids, BNP,
    • a muscle strength measurement on a isokinetic dynamometer,
    • assessment of body composition via dual energy x-ray absorptiometry,
    • cardiac echography,
    • questionnaires to assess health-related quality of life,
    • a questionnaire (IPAQ) and a pedometer (3 days) to assess physical activity. Following baseline measurements, subjects will be randomized to a control group (CON, n=10) and an exercise intervention group (EX, n=20), matching for gender and reduced/preserved ejection fraction and glucose tolerance. Hereafter, CON will receive usual care and will be advised to maintain their normal lifestyle, EX subjects will be enrolled in a 12-week training program. Following 6 (MID) and 12 (POST) weeks of exercise training including progressive training load adaptations, baseline measurements will be repeated in all patients.

  3. What are the possible benefits and risks of participating?

    • Benefits: patients receive a free training program with personal and professional supervision. After completing the study, they receive a report with personal results and evaluation of training effects.
    • Risks: the usual risks of exercise tolerance testing and exercise training in a CHF population are limited because training sessions are held in the supervised conditions of the Jessa hospital and because training characteristics are according to guidelines of the European Society of Cardiology. Exposure to x-rays during body composition assessment is very low, almost negligible.

Studietype

Intervensjonell

Registrering (Faktiske)

29

Fase

  • Ikke aktuelt

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
  • Eldre voksen

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

Alle

Beskrivelse

Inclusion Criteria:

  • diagnosis of chronic heart failure for at least 6 months
  • clinically stable (not hospitalized) for more than 3 months prior to the onset of the study
  • optimal medical therapy.

Exclusion Criteria:

  • any contra-indication for exercise therapy,
  • glucose lowering medical therapy,
  • active lifestyle with regular physical activity.

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: Randomisert
  • Intervensjonsmodell: Parallell tildeling
  • Masking: Ingen (Open Label)

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: training
12 weeks (2 x 6 weeks) of combined exercise training programme (supervised)
Annen: opplæring
Andre navn:
  • 12 weeks of combined exercise training
Ingen inngripen: Control
Continued usual care, habitual lifestyle

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
insulin sensitivity (insulin profile)
Tidsramme: change from baseline to 12 weeks
glucose and insulin concentration measurements in blood during oral glucose tolerance test
change from baseline to 12 weeks

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Exercise tolerance
Tidsramme: change from baseline to 12 weeks
maximal cardiopulmonary exercise test on a bicycle ergometer
change from baseline to 12 weeks
HbA1c, blood lipids, BNP
Tidsramme: change from baseline to 12 weeks
change from baseline to 12 weeks
Muscle strength
Tidsramme: change from baseline to 12 weeks
maximal strength and strength endurance tested on a isokinetic dynamometer
change from baseline to 12 weeks
Body composition
Tidsramme: change from baseline to 12 weeks
dual energy x-ray absorptiometry
change from baseline to 12 weeks
cardiac function
Tidsramme: change from baseline to 12 weeks
echocardiography
change from baseline to 12 weeks
Health-related quality of life
Tidsramme: change from baseline to 12 weeks
MLHFQ and Eq5d
change from baseline to 12 weeks

Samarbeidspartnere og etterforskere

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

Sponsor

Hasselt University

Samarbeidspartnere

Jessa Hospital

Etterforskere

  • Studiestol: An Stevens, dra., Hasselt 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

1. april 2011

Primær fullføring (Faktiske)

1. juni 2011

Studiet fullført (Faktiske)

1. oktober 2011

Datoer for studieregistrering

Først innsendt

27. november 2013

Først innsendt som oppfylte QC-kriteriene

27. november 2013

Først lagt ut (Anslag)

4. desember 2013

Oppdateringer av studieposter

Sist oppdatering lagt ut (Anslag)

10. desember 2013

Siste oppdatering sendt inn som oppfylte QC-kriteriene

8. desember 2013

Sist bekreftet

1. desember 2013

Mer informasjon

Begreper knyttet til denne studien

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • 11.11/cardio11.01

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

produkt produsert i og eksportert fra USA

Nei

Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .

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