The Effect of a High Protein Diet Versus a Low Fat Diet on Body Weight After Smoking Cessation
28. juni 2017 opdateret af: Tor Ole Klemsdal, Oslo University Hospital
The Effect of a High Protein Diet Versus a Low Fat Diet on Body Weight and Composition, Total Energy Expenditure, Metabolic Risk Factors and Eating Behavior After Smoking Cessation
The purpose of this study is to determine whether subjects following a high protein diet will gain less in weight after smoking cessation compared to subjects following a low fat diet due to the effects of protein on metabolic rate and hunger.
Studieoversigt
Status
Afsluttet
Betingelser
Intervention / Behandling
Detaljeret beskrivelse
Sustained smoking cessation is one of the most effective therapies to avoid premature morbidity and mortality.
However, weight gain associated with nicotine withdrawal may attenuate some of the beneficial health effects and is cited as a major obstacle to quit smoking.
The mechanism for the weight gain is not elucidated but reduced resting metabolic rate, reduced total energy expenditure, increased caloric intake and changes in fat metabolism may be involved.
Elucidating effective strategies to prevent or reduce post-cessation weight gain may improve health outcomes of smoking cessation.
Undersøgelsestype
Interventionel
Tilmelding (Faktiske)
122
Fase
- Ikke anvendelig
Kontakter og lokationer
Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.
Studiesteder
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Oslo, Norge, 0407
- Department of Preventive Cardiology
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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
20 år til 65 år (Voksen, Ældre voksen)
Tager imod sunde frivillige
Ja
Køn, der er berettiget til at studere
Alle
Beskrivelse
Inclusion Criteria:
- Smoking 10 cigarettes per day, BMI 25-40
Exclusion Criteria:
- Recent change in weight, contra-indications to use varenicline, a medication to assist smoking cessation
Studieplan
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: Randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Ingen (Åben etiket)
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
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Eksperimentel: The High Protein Diet Group
The high protein diet (25% energy from protein, 55% energy from fat, 20% energy from carbohydrate) will be hypo-caloric and achieved by restricting the amount of sugar containing foods and drinks, reducing the intake of bread, rice, pasta, fruits and fruit-juices and increasing the intake of vegetables (instead of bread, rice, pasta and potatoes) and increasing the amounts of protein (from chicken, fish, and meat) and fat from oil and dressings for lunch and dinner and by choosing nuts and protein-rich yoghurts, egg, cheese, chicken wings, shellfish, fish and fish products as snacks.
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The High Protein Diet Group was advised to have 25 energy percent from protein, 55 energy percent from fat, 20 energy percent from carbohydrate in the diet and the Low Fat Diet Group was advised to have 30 energy percent from fat, 20 energy percent from protein, 50 energy percent from carbohydrate in the diet.
Andre navne:
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Aktiv komparator: The Low Fat Diet Group
The low fat diet (30% energy from fat, 20% energy from protein, 50% energy percent from carbohydrate) will be hypo-caloric and achieved by choosing low-fat diary and meat products, restricting amounts of visible fat and fatty snacks and increasing intake of whole meal bread, muesli, brown rice, whole meal pasta in the main meals and by choosing yoghurt with muesli, oat porridge with milk, fruits and hard bread with jam and soft gout-cheese as snacks.
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The High Protein Diet Group was advised to have 25 energy percent from protein, 55 energy percent from fat, 20 energy percent from carbohydrate in the diet and the Low Fat Diet Group was advised to have 30 energy percent from fat, 20 energy percent from protein, 50 energy percent from carbohydrate in the diet.
Andre navne:
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Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Tidsramme |
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Body weight and waist circumference
Tidsramme: 4 weeks, 3 months and 6 months after smoking cessation
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4 weeks, 3 months and 6 months after smoking cessation
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Sekundære resultatmål
Resultatmål |
Tidsramme |
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Resting metabolic rate, total energy expenditure, body composition, components of metabolic syndrome, eating behavior
Tidsramme: 4 weeks
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4 weeks
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Samarbejdspartnere og efterforskere
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
Sponsor
Efterforskere
- Ledende efterforsker: Serena Tonstad, Professor, Oslo University Hospital
Publikationer og nyttige links
Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.
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
1. januar 2010
Primær færdiggørelse (Faktiske)
1. august 2013
Studieafslutning (Faktiske)
1. august 2013
Datoer for studieregistrering
Først indsendt
15. februar 2010
Først indsendt, der opfyldte QC-kriterier
15. februar 2010
Først opslået (Skøn)
17. februar 2010
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
29. juni 2017
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
28. juni 2017
Sidst verificeret
1. juni 2017
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- 1375
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
UBESLUTET
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