| Title |
Early-phase muscular adaptations in response to slow-speed versus traditional resistance-training regimens
|
|---|---|
| Published in |
European Journal of Applied Physiology, February 2012
|
| DOI | 10.1007/s00421-012-2339-3 |
| Pubmed ID | |
| Authors |
Mark D. Schuenke, Jennifer R. Herman, Roger M. Gliders, Fredrick C. Hagerman, Robert S. Hikida, Sharon R. Rana, Kerry E. Ragg, Robert S. Staron |
| Abstract |
Thirty-four untrained women participated in a 6-week program to investigate slow-speed versus "normal" speed resistance-training protocols. Subjects were divided into: slow-speed (SS), normal-speed/traditional-strength (TS), normal-speed/traditional muscular endurance (TE), and non-exercising control (C) groups. Leg press, squats, and knee extensions were performed 2 days/week for the first week and 3 days/week for the remaining 5 weeks (~2 min rest). The SS group performed 6-10 repetitions maximum (6-10RM) for each set with 10 s concentric (con) and 4 s eccentric (ecc) contractions. The TS and TE groups performed sets of 6-10RM and 20-30RM, respectively, at "normal" speed (1-2 s/con and ecc contractions). TE and SS trained at the same relative intensity (~40-60% 1RM), whereas TS trained at ~80-85% 1RM. Pre- and post-training muscle biopsies were analyzed for fiber-type composition, cross-sectional area (CSA), and myosin heavy chain (MHC) content. The percentage of type IIX fibers decreased and IIAX increased in all three training groups. However, only TS showed an increase in percentage of type IIA fibers. CSA of fiber types I, IIA, and IIX increased in TS. In SS, only the CSA of IIA and IIX fibers increased. These changes were supported by MHC data. No significant changes for any parameters were found for the C group. In conclusion, slow-speed strength training induced a greater adaptive response compared to training with a similar resistance at "normal" speed. However, training with a higher intensity at "normal" speed resulted in the greatest overall muscle fiber response in each of the variables assessed. |
X Demographics
The data shown below were collected from the profiles of 22 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United Kingdom | 4 | 18% |
| United States | 4 | 18% |
| Australia | 2 | 9% |
| Brazil | 1 | 5% |
| Spain | 1 | 5% |
| Japan | 1 | 5% |
| Canada | 1 | 5% |
| India | 1 | 5% |
| Unknown | 7 | 32% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 16 | 73% |
| Scientists | 4 | 18% |
| Practitioners (doctors, other healthcare professionals) | 2 | 9% |
Mendeley readers
The data shown below were compiled from readership statistics for 324 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Brazil | 2 | <1% |
| Germany | 1 | <1% |
| Canada | 1 | <1% |
| Belgium | 1 | <1% |
| Denmark | 1 | <1% |
| Japan | 1 | <1% |
| United States | 1 | <1% |
| Unknown | 316 | 98% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Bachelor | 82 | 25% |
| Student > Master | 46 | 14% |
| Student > Ph. D. Student | 40 | 12% |
| Researcher | 21 | 6% |
| Student > Doctoral Student | 18 | 6% |
| Other | 50 | 15% |
| Unknown | 67 | 21% |
| Readers by discipline | Count | As % |
|---|---|---|
| Sports and Recreations | 173 | 53% |
| Agricultural and Biological Sciences | 19 | 6% |
| Medicine and Dentistry | 17 | 5% |
| Nursing and Health Professions | 16 | 5% |
| Biochemistry, Genetics and Molecular Biology | 6 | 2% |
| Other | 26 | 8% |
| Unknown | 67 | 21% |
Attention Score in Context
This research output has an Altmetric Attention Score of 22. 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 24 November 2023.
All research outputs
#1,697,983
of 25,374,647 outputs
Outputs from European Journal of Applied Physiology
#550
of 4,345 outputs
Outputs of similar age
#11,964
of 256,936 outputs
Outputs of similar age from European Journal of Applied Physiology
#7
of 45 outputs
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So far Altmetric has tracked 4,345 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 14.6. This one has done well, scoring higher than 87% of its peers.
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