| Title |
Strength training elevates HSP27, HSP70 and αB-crystallin levels in musculi vastus lateralis and trapezius
|
|---|---|
| Published in |
European Journal of Applied Physiology, September 2011
|
| DOI | 10.1007/s00421-011-2132-8 |
| Pubmed ID | |
| Authors |
G. Paulsen, K. E. Hanssen, B. R. Rønnestad, N. H. Kvamme, I. Ugelstad, F. Kadi, T. Raastad |
| Abstract |
A single bout of high-force exercise has been shown to increase the muscle levels of heat shock proteins (HSPs). Here, changes in the levels of HSPs after 2 and 11 weeks of strength training with either one or three sets per exercise were examined. Fifteen young men (27 ± 6 years, 182 ± 8 cm and 82 ± 13 kg) were randomized to train either one set in lower-body exercises and three sets in upper-body exercises (1L-3UB), or three sets in lower-body exercises and one set in upper-body exercises (3L-1UB). Biopsies from vastus lateralis and trapezius were obtained before, during (2 weeks) and after 11 weeks of strength training (3 bouts per week). The biopsies were analysed for HSP27 (cytosolic and cytoskeletal fractions) and HSP70 and αB-crystallin (cytosolic fraction). No evidence for an effect of training volume (1 vs. 3 sets) on the HSP response was found. For all subjects combined, HSP27 [186 ± 69% (mean ± SD)], HSP70 (146 ± 51%) and αB-crystallin (184 ± 82%) increased in the cytosolic fraction of vastus lateralis after 11 weeks of training. In the trapezius, the only observed increase was for HSP27 in the cytosolic fraction after 2 weeks of training (149 ± 59%). However, the trapezius contained somewhat higher levels of HSP70 and αB-crystallin than vastus lateralis at baseline. The HSP27 levels in the cytoskeletal compartment did not increase significantly in either muscle. In conclusion, strength training resulted-independent of training volume-in elevated levels of HSP27, HSP70 and αB-crystallin in the cytosolic compartment of the vastus lateralis. In the trapezius, only the cytosolic HSP27 levels were increased with training. |
X Demographics
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Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 1 | 50% |
| Unknown | 1 | 50% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 1 | 50% |
| Scientists | 1 | 50% |
Mendeley readers
The data shown below were compiled from readership statistics for 73 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 1 | 1% |
| Norway | 1 | 1% |
| Unknown | 71 | 97% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 13 | 18% |
| Researcher | 11 | 15% |
| Student > Bachelor | 8 | 11% |
| Student > Doctoral Student | 6 | 8% |
| Student > Master | 6 | 8% |
| Other | 13 | 18% |
| Unknown | 16 | 22% |
| Readers by discipline | Count | As % |
|---|---|---|
| Sports and Recreations | 17 | 23% |
| Medicine and Dentistry | 11 | 15% |
| Nursing and Health Professions | 6 | 8% |
| Agricultural and Biological Sciences | 6 | 8% |
| Biochemistry, Genetics and Molecular Biology | 3 | 4% |
| Other | 8 | 11% |
| Unknown | 22 | 30% |
Attention Score in Context
This research output has an Altmetric Attention Score of 2. 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 10 August 2018.
All research outputs
#16,722,190
of 25,374,647 outputs
Outputs from European Journal of Applied Physiology
#3,226
of 4,345 outputs
Outputs of similar age
#94,442
of 136,352 outputs
Outputs of similar age from European Journal of Applied Physiology
#47
of 66 outputs
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