| Impact of high-fat /low-carbohydrate, high-, low-glycaemic index or low-caloric meals on glucose regulation during aerobic exercise in Type 2 diabetes. | |
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MedLine Citation:
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PMID: 19538233 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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AIMS: A decrement in blood glucose (BG) may be observed in patients with Type 2 diabetes (T2DM) when exercise is performed after a meal, in contrast to fasting. We determined the impact of different pre-exercise meal macronutrient compositions with modulation of the glycaemic index (GI) on glucose regulation during exercise in patients with T2DM. METHODS: Using a randomized, single-blind crossover design, 10 sedentary men performed five exercise sessions, once after an overnight fast, and also after each of four test meals, consisting of a high-fat/low-carbohydrate meal, a high-GI meal, a low-GI meal, and a low-calorie meal. RESULTS: Pre-exercise BG and insulin levels were comparable for all four meals. Exercise decreased BG and insulin levels during all meal conditions (all P < 0.001) compared with the fasting state in which BG levels did not change. The magnitude of BG and insulin decrements was similar after consuming the low-calorie, the high-GI and the high-fat/low-carbohydrate meals, whereas the low-GI meal induced the lowest BG fall. Adrenaline response was higher after consumption of the high-, the low-GI and the low-caloric meals compared with the high-fat/low-carbohydrate meal and with the fasting state (P < 0.05). CONCLUSIONS: This study underlines the beneficial effect of low-GI foods and the differential impact of pre-exercise meal macronutrient composition on BG decrease. This may protect against exercise-induced hypoglycaemia, and reiterates the safety of exercising while fasting in T2DM patients. |
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Authors:
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A Ferland; P Brassard; S Lemieux; J Bergeron; P Bogaty; F Bertrand; S Simard; P Poirier |
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Publication Detail:
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Type: Comparative Study; Journal Article; Randomized Controlled Trial |
Journal Detail:
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Title: Diabetic medicine : a journal of the British Diabetic Association Volume: 26 ISSN: 1464-5491 ISO Abbreviation: Diabet. Med. Publication Date: 2009 Jun |
Date Detail:
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Created Date: 2009-06-22 Completed Date: 2010-02-22 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8500858 Medline TA: Diabet Med Country: England |
Other Details:
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Languages: eng Pagination: 589-95 Citation Subset: IM |
Affiliation:
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Laval Hospital Research Centre, Quebec Heart and Lung Institute. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Blood Glucose / metabolism* Cross-Over Studies Diabetes Mellitus, Type 2 / blood, metabolism* Dietary Carbohydrates Epinephrine / metabolism* Exercise / physiology* Fasting Glycemic Index / physiology Humans Insulin / blood, metabolism* Male Middle Aged Single-Blind Method |
| Chemical | |
Reg. No./Substance:
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0/Blood Glucose; 0/Dietary Carbohydrates; 11061-68-0/Insulin; 51-43-4/Epinephrine |
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