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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
1976-1-8
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pubmed:abstractText |
16 male subjects exercised at 25, 50, 75, 90, 100 and 120% of VO2max on a von Döbeln bicycle ergometer. The muscle mass was measured in a whole body counter. Muscle blood flow (MBF) estimated from the rate of 133Xe clearance from m. rectus femoris showed a levelling-off at about 0.5 1 of blood per min and liter of muscle tissue (equal to an irrigation coefficient of 0.5 min-1) at work rates above 50 to 60% of VO2 max. This concurs with clearance data from the literature. However, when MBF is calculated from VO2, muscle mass, and reliable values for a- vo2 differences, MBF in the present subjects would: 1. Not level off before 90 to 100% VO2max, 2. reach a value of 1.0 min-1. The underestimation of MBF calculated from 133Xe clearance and the levelling-off shown by this method may be due to a systematic error inherent in the method, the 133Xe clearance being diffusion limited at high flow rates.
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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 |
Aug
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pubmed:issn |
0301-5548
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
15
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pubmed:volume |
34
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
191-7
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:1181182-Adult,
pubmed-meshheading:1181182-Humans,
pubmed-meshheading:1181182-Male,
pubmed-meshheading:1181182-Muscles,
pubmed-meshheading:1181182-Organ Size,
pubmed-meshheading:1181182-Oxygen Consumption,
pubmed-meshheading:1181182-Physical Exertion,
pubmed-meshheading:1181182-Regional Blood Flow,
pubmed-meshheading:1181182-Thigh,
pubmed-meshheading:1181182-Xenon
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pubmed:year |
1975
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pubmed:articleTitle |
Blood flow in thigh muscle during bicycling exercise at varying work rates.
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pubmed:publicationType |
Journal Article
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