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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1997-3-11
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pubmed:abstractText |
Repeated episodes of exaggerated postprandial lipemia may hasten the progression of atherosclerosis. The purpose of this study was to compare the lipemic response to a high-fat meal in trained and untrained women in the presence and absence of the acute effects of exercise. Nine endurance-trained and thirteen untrained women aged 40.4 +/- 3.3 and 43.8 +/- 4.3 y (mean +/- SD), with maximal oxygen uptake of 50.3 +/- 5.9 and 31.7 +/- 3.6 mL.kg-1.min-1, and a body mass index (kg/m2) of 22.2 +/- 0.9 and 22.9 +/- 2.3, respectively, underwent two trials, each over 2 d. Subjects did not exercise during the 2 d leading up to a trial. On day 1 they either walked for 90 min at 60% of maximal oxygen uptake (exercise), or refrained from exercise (control). On day 2 venous blood and expired air samples were obtained in the fasted state and for 6 h after consumption of a high-fat meal (1.70 g fat, 1.65 g carbohydrate, and 0.25 g protein/kg fat-free mass). Exercise decreased lipemia as determined by the mean (+/-SEM) area under the plasma triacylglycerol concentration versus time curve: trained, 6.96 +/- 0.48 compared with 4.87 +/- 0.33 mmol.h/L; untrained, 8.36 +/- 0.83 compared with 7.01 +/- 0.79 mmol.h/L (control and exercise trials, respectively, both P < 0.05). Lipemia differed significantly between groups in the presence of this acute effect of exercise but not in its absence. Exercise decreased insulinemia in trained women (543 +/- 25 compared with 433 +/- 24 pmol.h/L, P < 0.01) but had no effect in untrained women (592 +/- 34 compared with 585 +/- 47 pmol.h/L). Total oxidation of fat over the 6-h postprandial period was enhanced by exercise, and to a similar degree in each group of women.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Feb
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pubmed:issn |
0002-9165
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
65
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
525-33
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:9022540-Adult,
pubmed-meshheading:9022540-Body Composition,
pubmed-meshheading:9022540-Dietary Fats,
pubmed-meshheading:9022540-Energy Metabolism,
pubmed-meshheading:9022540-Exercise,
pubmed-meshheading:9022540-Exercise Test,
pubmed-meshheading:9022540-Female,
pubmed-meshheading:9022540-Humans,
pubmed-meshheading:9022540-Lipids,
pubmed-meshheading:9022540-Middle Aged,
pubmed-meshheading:9022540-Oxygen Consumption,
pubmed-meshheading:9022540-Physical Fitness,
pubmed-meshheading:9022540-Postprandial Period,
pubmed-meshheading:9022540-Triglycerides
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pubmed:year |
1997
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pubmed:articleTitle |
Acute effects of exercise on postprandial lipemia: a comparative study in trained and untrained middle-aged women.
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pubmed:affiliation |
Department of Physical Education, Loughborough University, United Kingdom.
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pubmed:publicationType |
Journal Article,
Clinical Trial,
Comparative Study,
Controlled Clinical Trial,
Research Support, Non-U.S. Gov't
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