| Postprandial lipemia: effects of exercise and restriction of energy intake compared. | |
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MedLine Citation:
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PMID: 10648259 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: The mitigating effect of exercise on postprandial lipemia may be attributable to the energy deficit incurred. OBJECTIVE: We aimed to compare the effects of prior exercise and an equivalent energy intake deficit on postprandial lipemia. DESIGN: Eleven postmenopausal women participated in 3 oral-fat-tolerance tests after undergoing different treatments on the preceding day: control (subjects refrained from exercise and consumed a prescribed diet), exercise (subjects consumed the same diet but walked briskly for 90 min), and intake restriction (subjects' food intake was restricted to induce the same energy deficit, relative to control, as brought about by the 90-min walk). Venous blood samples were obtained after subjects fasted overnight, 30 min after they ate a mixed, high-fat meal (1.70 g fat, 1.65 g carbohydrate, and 99 kJ/kg fat-free body mass), and hourly for the next 6 h. RESULTS: In the exercise trial, the mean fasting triacylglycerol concentration was 19% and 17% lower than the control and intake restriction values, respectively (P < 0.05 for both). Compared with the control trial, exercise reduced postprandial lipemia by a mean of 20% (P < 0.05), whereas intake restriction reduced it by 7% (NS). In the exercise trial, fasting and postprandial fatty acid concentrations were higher than control values (P < 0.05). Exercise, but not intake restriction, reduced postprandial insulin concentrations. CONCLUSIONS: The results suggest that the effect of exercise on postprandial lipid metabolism was greater than and different from that attributable to the energy deficit incurred. |
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Authors:
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J M Gill; A E Hardman |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: The American journal of clinical nutrition Volume: 71 ISSN: 0002-9165 ISO Abbreviation: Am. J. Clin. Nutr. Publication Date: 2000 Feb |
Date Detail:
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Created Date: 2000-02-17 Completed Date: 2000-02-17 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0376027 Medline TA: Am J Clin Nutr Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 465-71 Citation Subset: AIM; IM |
Affiliation:
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Human Muscle Metabolism Research Group, Department of Physical Education, Sports Science, and Recreation Management, Loughborough University, United Kingdom. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Blood Glucose Coronary Disease / etiology Energy Intake* Exercise* Exercise Test Fasting Fatty Acids / blood Female Food Deprivation Glucagon / blood Humans Insulin / blood Lipids / blood* Middle Aged Postmenopause Postprandial Period Triglycerides / blood, metabolism* |
| Chemical | |
Reg. No./Substance:
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0/Blood Glucose; 0/Fatty Acids; 0/Lipids; 0/Triglycerides; 11061-68-0/Insulin; 9007-92-5/Glucagon |
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