| Metabolic and hormonal responses to prolonged physical exercise in dogs after a single fat-enriched meal. | |
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MedLine Citation:
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PMID: 6394319 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Metabolic and hormonal responses to prolonged treadmill exercise in dogs fed a fat-enriched meal 4 h prior to the exercise were compared to those measured 4 h after a mixed meal or in the postabsorptive state. Ingestion of the fat-enriched meal caused significant elevations in the resting values of plasma triglyceride (TG), free fatty acid (FFA), and glycerol concentrations. A reduction of the plasma TG concentration (from 1.6 +/- 0.2 to 1.1 +/- 0.10 mmol X l-1, P less than 0.005) occurred only in dogs exercising after the fat-enriched meal. No significant changes in this variable were noted in dogs fed a mixed meal, whilst in the postabsorptive state exercise caused an increase in the plasma TG level (from 0.42 +/- 0.03 to 0.99 +/- 0.11 mmol X l-1, P less than 0.01). The exercise-induced elevations in plasma FFA and glycerol concentrations were the highest in the dogs given the fat-enriched meal. Plasma glycerol during exercise correlated with the initial values of circulating TG (r = 0.73). The plasma FFA-glycerol ratio, at the end of exercise was lowest in the dogs taking the fat-enriched meal (1.39 +/- 0.19), suggesting an increased utilization of FFA in comparison with that in the postabsorptive state (3.27 +/- 0.37) or after a mixed meal (2.88 +/- 0.55). Basal serum insulin (IRI) concentrations were similarly enhanced in dogs fed fat-enriched and mixed meals, and they were reduced to control values within 60 min of exercise.(ABSTRACT TRUNCATED AT 250 WORDS) |
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Authors:
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I Falecka-Wieczorek; H Kaciuba-Uściłko |
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Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: European journal of applied physiology and occupational physiology Volume: 53 ISSN: 0301-5548 ISO Abbreviation: Eur J Appl Physiol Occup Physiol Publication Date: 1984 |
Date Detail:
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Created Date: 1985-03-19 Completed Date: 1985-03-19 Revised Date: 2008-11-21 |
Medline Journal Info:
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Nlm Unique ID: 0410266 Medline TA: Eur J Appl Physiol Occup Physiol Country: GERMANY, WEST |
Other Details:
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Languages: eng Pagination: 267-73 Citation Subset: IM |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Blood Glucose / analysis Dietary Fats / pharmacology* Dogs Epinephrine / blood Fatty Acids, Nonesterified / blood Glycerol / blood Hormones / physiology* Insulin / blood Lactates / blood Male Metabolism / drug effects* Norepinephrine / blood Physical Exertion* Time Factors Triglycerides / blood* |
| Chemical | |
Reg. No./Substance:
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0/Blood Glucose; 0/Dietary Fats; 0/Fatty Acids, Nonesterified; 0/Hormones; 0/Lactates; 0/Triglycerides; 11061-68-0/Insulin; 51-41-2/Norepinephrine; 51-43-4/Epinephrine; 56-81-5/Glycerol |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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