Lifestyle Control of Postprandial Hyperglycemia
1 augusti 2017 uppdaterad av: Jonathan Little, University of British Columbia
Low-carbohydrate Diet, With or Without Exercise, for Improving Postprandial Glucose Control and Vascular Function in Type 2 Diabetes and Prediabetes.
Large spikes in blood glucose experienced after meals in people with type 2 diabetes are known to damage blood vessels.
Low carbohydrate high fat diets and exercise can improve blood glucose control in people with type 2 diabetes but it is unclear how these two strategies interact to affect blood vessel function and inflammation.
We will examine how following a short-term low carbohydrate high fat diet (4 days) with or without post-meal walking impacts markers of blood vessel function and inflammation.
We will also examine how a single low carbohydrate high fat meal, with or without post-meal walking, impacts blood glucose control and blood vessel function.
Findings will help determine the best lifestyle approach for improving cardiovascular health in type 2 diabetes.
Studieöversikt
Status
Avslutad
Betingelser
Studietyp
Interventionell
Inskrivning (Faktisk)
16
Fas
- Inte tillämpbar
Kontakter och platser
Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.
Studieorter
-
-
British Columbia
-
Kelowna, British Columbia, Kanada, V1V 1V7
- University of British Columbia, Okanagan.
-
-
Deltagandekriterier
Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.
Urvalskriterier
Åldrar som är berättigade till studier
40 år till 75 år (Vuxen, Äldre vuxen)
Tar emot friska volontärer
Nej
Kön som är behöriga för studier
Allt
Beskrivning
Inclusion Criteria:
- Diagnosed with type 2 diabetes (at least 6 months ago)
- Aged 40-75
- Engaging in 2 or less moderate-to-vigorous exercise bouts per week in the last 3 months
- Ability to understand and communicate in English to interact with the personal trainer
Exclusion Criteria:
- Diagnosed coronary artery disease
- Any contraindications to exercise (e.g., musculoskeletal injury)
- Prior history of cardio- or cerebrovascular disease or myocardial infarction
- Hypertension that is not controlled by medication (systolic blood pressure (BP) >160 mmHg and/or diastolic BP >99 mmHg)
- Change in diabetes medications in the previous 6 months
- Diagnosed with peripheral neuropathy
- Taking exogenous insulin
Studieplan
Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.
Hur är studien utformad?
Designdetaljer
- Primärt syfte: Övrig
- Tilldelning: Randomiserad
- Interventionsmodell: Crossover tilldelning
- Maskning: Ingen (Open Label)
Vapen och interventioner
Deltagargrupp / Arm |
Intervention / Behandling |
|---|---|
|
Aktiv komparator: High-carbohydrate diet
|
Participants will engage in 4 days of high-carbohydrate low fat diet as recommended by the Canadian Diabetes Association.
The macronutrients content will go as follow: 55% carbohydrate, 25% protein and 20% fat.
Breakfast, lunch and dinner will be provided to the participants as part of an isoenergetic diet.
Between interventions there will be at least a one-week washout, where participants are encouraged to return to their baseline dietary habits.
|
|
Experimentell: Low-carbohydrate diet
|
Participants will engage in 4 days of low-carbohydrate high-fat diet.
The macronutrients content will go as follow: 10% carbohydrate, 25% protein and 65% fat.
Breakfast, lunch and dinner will be provided to the participants as part of an isoenergetic diet.
Between interventions there will be at least a one-week washout, where participants are encouraged to return to their baseline dietary habits.
|
|
Experimentell: Low-carbohydrate diet with post-meal walking
|
Participants will engage in 4 days of low-carbohydrate high-fat diet.
The macronutrients content will go as follow: 10% carbohydrate, 25% protein and 65% fat.
Breakfast, lunch and dinner will be provided to the participants as part of an isoenergetic diet.
Between interventions there will be at least a one-week washout, where participants are encouraged to return to their baseline dietary habits.
Participants will follow the same diet as in the low-carbohydrate diet arm but also perform 15 minutes of walking beginning ~15 minutes after breakfast, lunch and dinner.
Approximately 70 kcal (individualized) will be added to main meals to account for exercise energy expenditure.
Between interventions there will be at least a one-week washout, where participants are encouraged to return to their baseline dietary habits.
|
Vad mäter studien?
Primära resultatmått
Resultatmått |
Tidsram |
|---|---|
|
Difference in glycemic control assessed by continuous glucose monitoring in low-carbohydrate, low-carbohydrate plus post-meal walking, and high-carbohydrate low-fat arm.
Tidsram: 4-day average glucose levels assessed in each arm.
|
4-day average glucose levels assessed in each arm.
|
Sekundära resultatmått
Resultatmått |
Tidsram |
|---|---|
|
Change from baseline in circulating inflammatory cytokines after 4 days of intervention.
Tidsram: Fasting measurements taken on day 1 and day 5.
|
Fasting measurements taken on day 1 and day 5.
|
|
Change from baseline in toll-like receptors 2 and 4 expression on white blood cells after 4 days of intervention.
Tidsram: Fasting measurements taken on day 1 and day 5.
|
Fasting measurements taken on day 1 and day 5.
|
|
Change from baseline in flow mediated dilation of brachial artery after 4 days of intervention.
Tidsram: Fasting measurements taken on day 1 and day 5.
|
Fasting measurements taken on day 1 and day 5.
|
Andra resultatmått
Resultatmått |
Tidsram |
|---|---|
|
Change from baseline in flow-mediated dilation after single breakfast meal on day 1 of the intervention
Tidsram: Baseline and 1, 2, and 3 hours post-breakfast on day 1 in each arm
|
Baseline and 1, 2, and 3 hours post-breakfast on day 1 in each arm
|
|
Change from baseline in plasma glucose after single breakfast meal on day 1 of the intervention
Tidsram: Baseline and 1, 2, and 3 hours post-breakfast on day 1 in each arm
|
Baseline and 1, 2, and 3 hours post-breakfast on day 1 in each arm
|
|
Change from baseline in body weight after a single meal and 4 days of intervention.
Tidsram: Fasting measures on day 1 and day 5.
|
Fasting measures on day 1 and day 5.
|
Samarbetspartners och utredare
Det är här du hittar personer och organisationer som är involverade i denna studie.
Sponsor
Samarbetspartners
Studieavstämningsdatum
Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.
Studera stora datum
Studiestart
1 november 2015
Primärt slutförande (Faktisk)
1 juni 2017
Avslutad studie (Faktisk)
1 juni 2017
Studieregistreringsdatum
Först inskickad
11 februari 2016
Först inskickad som uppfyllde QC-kriterierna
11 februari 2016
Första postat (Uppskatta)
17 februari 2016
Uppdateringar av studier
Senaste uppdatering publicerad (Faktisk)
3 augusti 2017
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
1 augusti 2017
Senast verifierad
1 augusti 2017
Mer information
Termer relaterade till denna studie
Ytterligare relevanta MeSH-villkor
Andra studie-ID-nummer
- H1501952
Plan för individuella deltagardata (IPD)
Planerar du att dela individuella deltagardata (IPD)?
NEJ
Denna information hämtades direkt från webbplatsen clinicaltrials.gov utan några ändringar. Om du har några önskemål om att ändra, ta bort eller uppdatera dina studieuppgifter, vänligen kontakta register@clinicaltrials.gov. Så snart en ändring har implementerats på clinicaltrials.gov, kommer denna att uppdateras automatiskt även på vår webbplats .