Please use this identifier to cite or link to this item: https://repositorio.usj.es/handle/123456789/328

Title: Eccentric-concentric Ratio: A Key Factor for Defining Strength Training in Soccer
Authors: Núñez, Francisco Javier
De Hoyo, Moisés ORCID RESEARCHERID
Muñoz López, Alejandro ORCID RESEARCHERID
Sanudo, Borja ORCID RESEARCHERID SCOPUSID
Otero-Esquina, Carlos SCOPUSID
Sánchez, Hugo
Gonzalo-Skok, Óliver ORCID SCOPUSID
Keywords: Rotatory inertial device; Mean power; Sprint performance; Force-vector training; Resistance training; Young soccer players
Issue Date: Nov-2019
Publisher: GEORG THIEME VERLAG KG, RUDIGERSTR 14, D-70469 STUTTGART, GERMANY
Citation: Nuñez J et al. Eccentric-concentric Ratio: A Key … Int J Sports Med 2019; 40: 796–802
Abstract: The aims of this study were to analyse the effect of chronic strength training over concentric power (CON), eccentric power (ECC), ECC/CON ratio, and 20 m linear sprint performance in elite young soccer players. Twenty young elite Spanish soccer players were assigned to an experimental group (CPG) which performed a front-step exercise using a conical pulley, 2-3 sets of 6 repetitions each leg, during 9 weeks (CPG, n=10) in addition to its usual strength training, or to a control group (CG, n=10). The improvements in the ECC mean power (36%, ES=1.61), and ECC / CON ratio (17%, ES=1.77) were substantially greater in the CPG than in the CG while the CON mean power (16%, ES=0.83) was substantially greater in the CG than in the CPG. The sprinting time for 10 m (2.8%, ES=0.78) and the 10 m flying time between 10-20 m (1.72%, ES=0.41) were substantially enhanced in CPG and CG respectively. To be efficient when defining a functional strength training and performance increments using an inertial device, the mean power output need to be measured during the CON and ECC phases and an analysis of the ECC / CON ratio should be included.
URI: https://repositorio.usj.es/handle/123456789/328
ISSN: 0172-4622
Appears in Collections:Artículos de revistas

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