rdf:type |
|
lifeskim:mentions |
|
pubmed:dateCreated |
1990-1-5
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pubmed:abstractText |
1. Six weeks of a dynamic heavy-resistance training of the quadriceps muscle in healthy young men resulted in a continuous increase in muscle strength, in an increase in muscle cross-sectional area (significant only in the second half of the training period) and in an increase in radiological density of the muscle tissue of 3.1% (2P less than 0.001) in the first three weeks and 1.6% (2P less than 0.01) in the second three weeks. 2. The linear distance between myosin filaments (38.7 +/- 0.3 nm before, 38.7 +/- 0.4 nm after training; mean +/- S.E.M.) as well as the ratio of actin to myosin filaments (3.94 +/- 0.03 before, 3.86 +/- 0.06 after training) did not change with training. 3. These results refute the concept that the increases in muscle strength or radiological density during short-term heavy-resistance training are caused by changes in myofilament spacing.
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pubmed:commentsCorrections |
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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
|
pubmed:month |
Feb
|
pubmed:issn |
0022-3751
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pubmed:author |
|
pubmed:issnType |
Print
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pubmed:volume |
409
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
491-5
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pubmed:dateRevised |
2009-11-19
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pubmed:meshHeading |
pubmed-meshheading:2585299-Adolescent,
pubmed-meshheading:2585299-Adult,
pubmed-meshheading:2585299-Biomechanics,
pubmed-meshheading:2585299-Exercise,
pubmed-meshheading:2585299-Humans,
pubmed-meshheading:2585299-Male,
pubmed-meshheading:2585299-Microscopy, Electron,
pubmed-meshheading:2585299-Muscles,
pubmed-meshheading:2585299-Myosins,
pubmed-meshheading:2585299-Sarcomeres,
pubmed-meshheading:2585299-Time Factors
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pubmed:year |
1989
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pubmed:articleTitle |
Muscle filament spacing and short-term heavy-resistance exercise in humans.
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pubmed:affiliation |
Department of Anatomy, University of Bern, Switzerland.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|