| Title |
Cellular adaptation of the trapezius muscle in strength-trained athletes
|
|---|---|
| Published in |
Histochemistry and Cell Biology, February 1999
|
| DOI | 10.1007/s004180050348 |
| Pubmed ID | |
| Authors |
Fawzi Kadi, Anders Eriksson, Staffan Holmner, Gillian S. Butler-Browne, L.-E. Thornell |
| Abstract |
The aim of this study was to elucidate the cellular events that occur in the trapezius muscle following several years of strength training. In muscle biopsies from ten elite power lifters (PL) and six control subjects (C), several parameters were studied: cross-sectional area of muscle fibres, myosin heavy chain composition (MHC) and capillary supply [capillaries around fibres (CAF) and CAF/fibre area]. A method was also developed for counting the number of myonuclei and satellite cell nuclei. The proportion of fibres expressing MHC IIA, the cross-sectional area of each fibre type and the number of myonuclei, satellite cells and fibres expressing markers for early myogenesis were significantly higher in PL than in C (P<0.05). A significant correlation between the myonuclear number and the cross-sectional area was observed. Since myonuclei in mature muscle fibres are not able to divide, we suggest that the incorporation of satellite cell nuclei into muscle fibres resulted in the maintenance of a constant nuclear to cytoplasmic ratio. The presence of small diameter fibres expressing markers for early myogenesis indicates the formation of new muscle fibres. |
Mendeley readers
The data shown below were compiled from readership statistics for 115 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Norway | 2 | 2% |
| Hungary | 1 | <1% |
| Brazil | 1 | <1% |
| United Kingdom | 1 | <1% |
| Denmark | 1 | <1% |
| Unknown | 109 | 95% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Master | 23 | 20% |
| Researcher | 22 | 19% |
| Student > Ph. D. Student | 15 | 13% |
| Student > Bachelor | 13 | 11% |
| Professor | 11 | 10% |
| Other | 16 | 14% |
| Unknown | 15 | 13% |
| Readers by discipline | Count | As % |
|---|---|---|
| Sports and Recreations | 36 | 31% |
| Agricultural and Biological Sciences | 26 | 23% |
| Medicine and Dentistry | 15 | 13% |
| Biochemistry, Genetics and Molecular Biology | 9 | 8% |
| Neuroscience | 4 | 3% |
| Other | 7 | 6% |
| Unknown | 18 | 16% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 28 May 2017.
All research outputs
#22,758,309
of 25,373,627 outputs
Outputs from Histochemistry and Cell Biology
#1,075
of 1,236 outputs
Outputs of similar age
#100,393
of 102,030 outputs
Outputs of similar age from Histochemistry and Cell Biology
#8
of 8 outputs
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So far Altmetric has tracked 1,236 research outputs from this source. They receive a mean Attention Score of 3.7. This one is in the 1st percentile – i.e., 1% of its peers scored the same or lower than it.
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