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  Specificity of strength gains after 12 weeks of isokinetic eccentric training in healthy men
 
 
Title: Specificity of strength gains after 12 weeks of isokinetic eccentric training in healthy men
Author: dos Santos Rocha, Clarice Sperotto
Baroni, Bruno Manfredini
Lanferdini, Fábio Juner
de la Rocha Freitas, Cíntia
Frasson, Viviane Bortoluzzi
Vaz, Marco Aurélio
Appeared in: Isokinetics and exercise science
Paging: Volume 19 (2011) nr. 3 pages 221-226
Year: 2011-08-17
Contents: 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.
Publisher: IOS Press
Source file: Elektronische Wetenschappelijke Tijdschriften
 
 

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