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rdf:type |
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lifeskim:mentions |
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pubmed:issue |
3
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pubmed:dateCreated |
1984-12-20
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pubmed:abstractText |
This study has examined muscle strength and cross-sectional area in a group of 35 healthy untrained male subjects and 8 subjects who had been engaged in a strenuous weight-training programme. The maximum voluntary knee extension force which could be produced by the untrained subjects was 742 +/- 100 N (mean +/- SD). The trained subjects could produce a significantly (p less than 0.001) greater force (992 +/- 162 N). Cross-sectional area of the knee-extensor muscle group was 81.6 +/- 11.8 cm2 in the untrained subjects and 104.1 +/- 12.3 cm2 in the trained subjects (p less than 0.001). In the untrained subjects, a significant correlation existed between strength and muscle cross-sectional area (r = 0.56, p less than 0.001). In the same group of subjects, there was a significant inverse relationship between muscle cross-sectional area and the ratio of strength to cross-sectional area (r = 0.55, p less than 0.001). The mean ratio of strength to cross-sectional area was 9.20 +/- 1.29 for the untrained group whereas for the trained group this ratio was 9.53 +/- 1.01. It is suggested that the inverse relationship between strength per unit cross-sectional area and cross-sectional area results in part from an increased angle of pennation in the larger muscles.
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pubmed:commentsCorrections |
http://linkedlifedata.com/resource/pubmed/commentcorrection/6487941-1185666,
http://linkedlifedata.com/resource/pubmed/commentcorrection/6487941-13717441,
http://linkedlifedata.com/resource/pubmed/commentcorrection/6487941-139079,
http://linkedlifedata.com/resource/pubmed/commentcorrection/6487941-158694,
http://linkedlifedata.com/resource/pubmed/commentcorrection/6487941-16991644,
http://linkedlifedata.com/resource/pubmed/commentcorrection/6487941-428373,
http://linkedlifedata.com/resource/pubmed/commentcorrection/6487941-46802,
http://linkedlifedata.com/resource/pubmed/commentcorrection/6487941-4757354,
http://linkedlifedata.com/resource/pubmed/commentcorrection/6487941-5425330,
http://linkedlifedata.com/resource/pubmed/commentcorrection/6487941-5700894,
http://linkedlifedata.com/resource/pubmed/commentcorrection/6487941-6052883,
http://linkedlifedata.com/resource/pubmed/commentcorrection/6487941-6617027,
http://linkedlifedata.com/resource/pubmed/commentcorrection/6487941-6843320,
http://linkedlifedata.com/resource/pubmed/commentcorrection/6487941-684368,
http://linkedlifedata.com/resource/pubmed/commentcorrection/6487941-6875963,
http://linkedlifedata.com/resource/pubmed/commentcorrection/6487941-6890445,
http://linkedlifedata.com/resource/pubmed/commentcorrection/6487941-7199447,
http://linkedlifedata.com/resource/pubmed/commentcorrection/6487941-7228766,
http://linkedlifedata.com/resource/pubmed/commentcorrection/6487941-7298453,
http://linkedlifedata.com/resource/pubmed/commentcorrection/6487941-7348037,
http://linkedlifedata.com/resource/pubmed/commentcorrection/6487941-7372511,
http://linkedlifedata.com/resource/pubmed/commentcorrection/6487941-844260
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pubmed:language |
eng
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pubmed:journal |
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pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:month |
Sep
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pubmed:issn |
0306-3674
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pubmed:author |
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pubmed:issnType |
Print
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pubmed:volume |
18
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
149-57
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pubmed:dateRevised |
2009-11-18
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pubmed:meshHeading |
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pubmed:year |
1984
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pubmed:articleTitle |
Muscle strength and cross-sectional area in man: a comparison of strength-trained and untrained subjects.
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pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, Non-U.S. Gov't
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