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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
7
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pubmed:dateCreated |
1997-2-7
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pubmed:abstractText |
Controversial literature exists concerning the occurrence of inspiratory muscle fatigue during efforts performed outside a laboratory. The purpose of this study was to assess inspiratory muscle strength and endurance time measured as Tlim, the length of time a subject can endure a task before the onset of fatigue, in ultra-marathon runners by simple non-invasive techniques before and after an ultra-marathon (87 km). Ten runners, (8 males and 2 females), who had normal clinical evaluation and lung function underwent inspiratory muscle assessment by measurement of maximal inspiratory mouth pressures and sustained inspiratory mouth pressures at a given target pressure and a given duty cycle. The measurements were performed prior to the race and 3 days after the race. No significant difference was observed in the inspiratory muscle strength 3 days after the race (p > 0.37), but the inspiratory muscle endurance time as measured by Tlim, was significantly lower (p < 0.002), with an overall decrease of 26.5%. Inspiratory muscle strength was normal 3 days after the race, however the inspiratory muscle endurance time as measured by sustained inspiratory pressure was still impaired 3 days after the race.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:month |
Oct
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pubmed:issn |
0172-4622
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
17
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
493-6
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pubmed:dateRevised |
2004-11-17
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pubmed:meshHeading |
pubmed-meshheading:8912063-Adult,
pubmed-meshheading:8912063-Female,
pubmed-meshheading:8912063-Humans,
pubmed-meshheading:8912063-Male,
pubmed-meshheading:8912063-Middle Aged,
pubmed-meshheading:8912063-Muscle Fatigue,
pubmed-meshheading:8912063-Physical Endurance,
pubmed-meshheading:8912063-Respiratory Muscles,
pubmed-meshheading:8912063-Running,
pubmed-meshheading:8912063-Time Factors
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pubmed:year |
1996
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pubmed:articleTitle |
Respiratory muscle fatigue after an ultra-marathon measured as inspiratory task failure.
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pubmed:affiliation |
Department of Internal Medicine, University of Pretoria, South Africa.
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pubmed:publicationType |
Journal Article
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