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| Titel: |
Specificity of strength gains after 12 weeks of isokinetic eccentric training in healthy men |
| Auteur: |
dos Santos Rocha, Clarice Sperotto Baroni, Bruno Manfredini Lanferdini, Fábio Juner de la Rocha Freitas, Cíntia Frasson, Viviane Bortoluzzi Vaz, Marco Aurélio |
| Verschenen in: |
Isokinetics and exercise science |
| Paginering: | Jaargang 19 (2011) nr. 3 pagina's 221-226 |
| Jaar: |
2011-08-17 |
| Inhoud: |
Although previous studies have demonstrated that skeletal muscle adaptations were specific to the types of stimuli, eccentric training studies presented controversial results concerning strength gains in eccentric, isometric and concentric tests. Therefore, the goal of this study was to evaluate torque-velocity adaptations following isokinetic eccentric training protocol using the quadriceps as a model. Twenty physically active men were randomly assigned to a control group (CG; n=10) or to an eccentric training group (ETG; n=10). Knee extensor torque-velocity relationship including isometric tests and isokinetic tests at 60°/s, 120°/s, 180°/s, 240°/s and 300°/s in concentric and eccentric modes, were assessed before and after a 12-week period of eccentric training (3 sessions/week; 2–5 sets of 7–9 maximal repetitions per session performed at 60°/s along a range of motion 90°). Isokinetic eccentric training significantly increased the knee extensor torque at the training velocity (59%) and at the adjacent velocities (24% at 120°/s and 29% in the isometric test). These results demonstrate the specificity of strength gains in isokinetic eccentric training in relation to contraction type and to angular velocity. |
| Uitgever: |
IOS Press |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
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