Comparison of Three Eccentric Overload Training Strategies on Power Output and Interlimb Asymmetry in Youth Soccer Players

Alejandro Moreno-Azze, José Luis Arjol-Serrano, David Falcón-Miguel, Chris Bishop and Oliver Gonzalo-Skok
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Alejandro Moreno-Azze: Faculty of Health Sciences, University of San Jorge, 50830 Zaragoza, Spain
José Luis Arjol-Serrano: Faculty of Health Sciences, University of San Jorge, 50830 Zaragoza, Spain
David Falcón-Miguel: Faculty of Health & Sport Sciences, University of Zaragoza, 22001 Huesca, Spain
Chris Bishop: London Sport Institute, Faculty of Science and Technology, Middlesex University, London NW4 4BT, UK
Oliver Gonzalo-Skok: Return to Play Department, 41005 Sevilla, Spain

IJERPH, 2021, vol. 18, issue 16, 1-12

Abstract: Background: The present study compared the effects of performing the lateral squat exercise in three different formats from eccentric overload training on concentric/eccentric peak/mean power and inter-limb asymmetries in young soccer players. Methods: Forty-five young male (U-17) soccer players were distributed into three groups. Two groups performed the same training volume with both legs, beginning with the weaker leg (SVW, n = 15) or with the stronger leg (SVS, n = 15). The third group executed double volume with the weaker leg and also commenced with such leg (DVW, n = 15) in the lateral squat during a 10-week period. Pre- and post-intervention metrics included concentric and eccentric peak/mean power during the lateral squat test and their corresponding asymmetries. Results: All groups improved all power variables. Concentric mean and peak power asymmetry were substantially reduced in the SVW (ES: 0.89), DVW (ES: 0.43), and in SVW (ES: 1.60). Eccentric mean and peak power asymmetry were also substantially decreased in SVW (ES: 0.81) and in DVW (ES: 0.68). Between-group analyses showed substantially better performance in concentric and eccentric variables with stronger and weaker legs in SVW and DVW groups compared with SVS. Conclusions: Those groups which started with the weaker leg showed greater both power enhancements and reductions on inter-limb asymmetries.

Keywords: eccentric training; resistance training; injury prevention (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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