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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
1993-7-19
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pubmed:abstractText |
The present study was performed to evaluate the effects of chronic inspiratory hypoxia and its combination with physical exercise on plasma erythropoietin concentration ([EPO]). Eight natives from the Bolivian Plateau were investigated at 3,600 m above sea level at rest as well as during and up to 48 h after exhaustive exercise (EE) and 60 min of submaximal (60%) cycle ergometer exercise (SE). Ten sea-level subjects were used as a control group for resting values. The mean resting plasma [EPO] of the high-altitude group (19.5 +/- 0.7 mU/ml) did not differ from that of the sea-level group (18.1 +/- 0.4 mU/ml) but was higher than would be expected from the relationship between [EPO] and hematocrit at sea level. Five hours after both types of exercise, [EPO] decreased by 2.1 +/- 0.8 (EE, P < 0.01) and 1.6 +/- 0.8 mU/ml (SE, P < 0.05); 48 h after SE, [EPO] increased by 2.6 +/- 0.9 mU/ml (P < 0.05). It is concluded that 1) high-altitude natives need relatively high [EPO] to maintain their high hematocrit and 2) exercise at low basal arterial PO2 does not directly increase plasma [EPO] in high-altitude residents but seems to exert suppressive effects.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Apr
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pubmed:issn |
8750-7587
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
74
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1874-8
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:8514706-Acclimatization,
pubmed-meshheading:8514706-Adult,
pubmed-meshheading:8514706-Altitude,
pubmed-meshheading:8514706-Anoxia,
pubmed-meshheading:8514706-Erythropoietin,
pubmed-meshheading:8514706-Exercise,
pubmed-meshheading:8514706-Hematocrit,
pubmed-meshheading:8514706-Humans,
pubmed-meshheading:8514706-Male,
pubmed-meshheading:8514706-Oxygen,
pubmed-meshheading:8514706-Plasma Volume
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pubmed:year |
1993
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pubmed:articleTitle |
Effects of chronic hypoxia and exercise on plasma erythropoietin in high-altitude residents.
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pubmed:affiliation |
Abteilung Sport- und Arbeitsphysiologie, Medizinische Hochschule Hannover, Germany.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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