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Exercise Effects on Insulin, Gut Peptides, and Appetite (XFG)

10. juni 2016 oppdatert av: Dr. Katarina Borer, University of Michigan

The Exercise Effects on Appetite and Gut Peptides While on High-fat Diet

Determine whether the mid-day suppression of hunger and amplified increase in the release of glucose-dependent insulinotropic peptide (GIP) and glucagon-like peptide 1 (GLP-1) following morning exercise is due to increased fat content of the diet per se or a combination of high fat diet after morning exercise. The action of gut peptides, particularly GLP-1, on gastric emptying is likely to be important in mediating its effects on postprandial appetite and glycemia (Nauck et al. 1997). Our hypothesis is that exercise amplifies gut peptide secretion when diet is enriched with fat, and that this stimulus suppresses the hunger sensation.

Studieoversikt

Status

Fullført

Forhold

Intervensjon / Behandling

Detaljert beskrivelse

Specific aim: Determine whether a change in macronutrient composition from 60% carbohydrate and 25% fat to 30% carbohydrate and 45% fat is responsible by itself for suppression of hunger and increased secretory response of glucose-dependent insulinotropic hormone (GIP) and glucagon-like peptide-1 (GLP-1), or whether these changes depend on preceding exercise. We will measure (a) concentrations of plasma GIP and GLP-1 by chemiluminescent multiplex assay, (b) concentrations of plasma ancetaminophen to assess the gastric emptying rate, (c) concentrations of plasma insulin, and glucagon by radioimmunoassay, and glucose, ketone bodies, and free fatty acids with appropriate spectrophotometric methods, (d) hourly appetite responses with visual analog scale under two conditions: sedentary (SED) and exercise (EX).

Hypothesis: Hunger suppression and secretion of GIP and GLP-1 after the morning meal will be greater with slower gastric emptying rate when a meal consisting of 45% fat and 30% carbohydrate follows three hours after a 2-hour bout of moderate-intensity exercise than in the absence of exercise.

Studietype

Intervensjonell

Registrering (Faktiske)

16

Fase

  • Ikke aktuelt

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiesteder

  • Forente stater
    • Michigan
      • Ann Arbor, Michigan, Forente stater, 48109
        • Michigan Clinical Research Unit

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

50 år til 65 år (Voksen, Eldre voksen)

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

Hunn

Beskrivelse

Inclusion Criteria:

  • Postmenopausal status
  • Age 50 to 65 years
  • BMI between 20 and 30 kg/m2.
  • Good health status (normotensive, fasting glucose < 100 mg/dl, , hematocrit > 32%, hemoglobin >12 mg/dl)
  • Absence of restricted food intake
  • Absence of endocrine and metabolic disorders requiring medication other than hormonally corrected hypothyroidism
  • Absence of musculoskeletal disabilities that would prevent walking

Exclusion Criteria:

  • Presence of endocrine and metabolic disease requiring medication, other than hormonally corrected hypothyroidism
  • Presence of musculoskeletal disabilities that would prevent walking
  • Smoking
  • Active dieting
  • Absence of listed inclusion criteria
  • Unwillingness to follow study protocol.

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Grunnvitenskap
  • Tildeling: Ikke-randomisert
  • Intervensjonsmodell: Parallell tildeling
  • Masking: Ingen (Open Label)

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: Exercise-high-fat diet
Two bouts of exercise followed by a high-fat meal
Annen: Exercise and diets
Exercise and high-fat diet Exercise and high-carbohydrate diet Sedentary and high-fat diet Sedentary and high-carbohydrate diet
Eksperimentell: Exercise-high-carbohydrate diet
Two bouts of exercise followed by a high-carbohydrate meal
Annen: Exercise and diets
Exercise and high-fat diet Exercise and high-carbohydrate diet Sedentary and high-fat diet Sedentary and high-carbohydrate diet
Eksperimentell: Sedentary-high-fat diet
Sedentary trial with two high-fat meals
Annen: Exercise and diets
Exercise and high-fat diet Exercise and high-carbohydrate diet Sedentary and high-fat diet Sedentary and high-carbohydrate diet
Eksperimentell: Sedentary-high-carbohydrate diet
Sedentary trial with two high-carbohydrate meals
Annen: Exercise and diets
Exercise and high-fat diet Exercise and high-carbohydrate diet Sedentary and high-fat diet Sedentary and high-carbohydrate diet

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Plasma insulin concentration
Tidsramme: 36 hours
Change in plasma insulin to two bouts of exercise followed by a high-carbohydrate or a high fat diet
36 hours
Plasma glucagon concentration
Tidsramme: 36 hours
Changes in plasma glucagon concentration to two bouts of exercise followed by either a high-carbohydrate or a high-fat meal
36 hours
Plasma concentration of glucose-dependent insulinotropic peptide (GIP)
Tidsramme: 36 hours
Changes in plasma concentration of glucose-dependent insulinotropic peptide (GIP)to two bouts of exercise followed by either a high-carbohydrate or a high-fat meal
36 hours
Plasma concentration of free fatty acids
Tidsramme: 36 hours
Changes in plasma concentration of free fatty acidsto two bouts of exercise followed by either a high-carbohydrate or a high-fat meal
36 hours
Plasma concentration of beta-hydroxybutyrate
Tidsramme: 36 hours
Changes in plasma concentration of beta-hydroxybutyrate to two bouts of exercise followed by either a high-carbohydrate or a high-fat meal
36 hours
Plasma glucose concentration
Tidsramme: 36 hours
Changes in plasma glucose concentration to two bouts of exercise followed by either a high-carbohydrate or a high-fat meal
36 hours
daytime hourly appetite ratings
Tidsramme: 36 hours
Changes in daytime hourly appetite ratings to two bouts of exercise followed by either a high-carbohydrate or a high-fat meal
36 hours

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Plasma concentrations of glucagon-like peptide-1 (GLP-1)
Tidsramme: 36 hours
Changes in plasma concentrations of glucagon-like peptide-1 (GLP-1)to two bouts of exercise followed by either a high-carbohydrate or a high-fat meal
36 hours
Plasma concentrations of peptide tyrosine tyrosine (PYY)
Tidsramme: 36 hours
Changes in plasma concentrations of peptide tyrosine tyrosine (PYY) to two bouts of exercise followed by either a high-carbohydrate or a high-fat meal
36 hours

Samarbeidspartnere og etterforskere

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

Sponsor

University of Michigan

Samarbeidspartnere

National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)

Etterforskere

  • Hovedetterforsker: Katarina Borer, PhD, University of Michigan

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. november 2010

Primær fullføring (Faktiske)

1. juli 2012

Studiet fullført (Faktiske)

1. mars 2013

Datoer for studieregistrering

Først innsendt

26. juni 2013

Først innsendt som oppfylte QC-kriteriene

28. juni 2013

Først lagt ut (Anslag)

3. juli 2013

Oppdateringer av studieposter

Sist oppdatering lagt ut (Anslag)

13. juni 2016

Siste oppdatering sendt inn som oppfylte QC-kriteriene

10. juni 2016

Sist bekreftet

1. juni 2016

Mer informasjon

Begreper knyttet til denne studien

Nøkkelord

Andre studie-ID-numre

  • R15DK082800-XFG
  • R15DK082800 (U.S. NIH-stipend/kontrakt)

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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