Publication: Player load and metabolic power dynamics as load quantifiers in soccer
Authors
Reche‐Soto, Pedro ; Cardona‐Nieto, Donaldo ; Bastida Castillo, Alejandro ; Gómez Carmona, Carlos David ; García Rubio, Javier ; Díaz Suárez, Arturo ; Pino Ortega, José
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Publisher
Editorial Committee of Journal of Human Kinetics
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DOI
https://doi.org/10.2478/hukin‐2018‐0072
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info:eu-repo/semantics/article
Description
© 2019, Editorial Committee of Journal of Human Kinetics. This manuscript version is made available under the CC-BY 4.0 license http://creativecommons.org/licenses/by/4.0/. This document is the Published version of a Published Work that appeared in final form in Journal of Human Kinetics. To access the final edited and published work see https://doi.org/10.2478/hukin‐2018‐0072
Abstract
There has recently been an increase in quantification and objective analysis of soccer performance due to improvements in technology using load indexes such as Player Load (PL) and Metabolic Power (MP). The objectives of this study were: (1) to describe the performance of PL and MP in competition according to the specific role, match‐to‐match variation, periods of play, game location and match status according to game periods, and (2) to analyze the relationship between both indexes. Twenty‐one national‐level soccer players were distributed in the following specific
positional roles: external defenders (ED) (n = 4), central defenders (CD) (n = 4), midfielders (M) (n = 5), external midfielders (EM) (n = 4) and attackers (A) (n = 4). A total of 12 matches played by a Spanish Third Division team
during the 2016/2017 season were analyzed. WIMU PROTM inertial devices (RealTrack System, Almeria, Spain) were used for recording the data. The main results were: (1) a performance reduction in both variables over the course of match time, (2) significant differences in both variables based on the specific position, (3) differences in physical demands during the season matches, (4) winning during a game period and the condition of being the visitor team provoked higher demands, and (5) a high correlation between both variables in soccer. In conclusion, different contextual variables influence the external load demands; both indexes are related so they could be used for external load quantification, and it is necessary to analyze physical demands of the competition for a specific and individualized load design in training sessions.
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Citation
Journal of Human Kinetics vol. 69/2019, 259‐269
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