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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

High-intensity curvilinear movements' relevance in semi-professional soccer: An approach from principal components analysis

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Author(s):
Pino-Ortega, Jose [1, 2] ; Clemente, Filipe Manuel [3, 4] ; Palucci Vieira, Luiz H. [5] ; Rico-Gonzalez, Markel [2, 6]
Total Authors: 4
Affiliation:
[1] Univ Murcia, Fac Sports Sci, San Javier - Spain
[2] Univ Murcia, BIOVETMED & SPORTSCI Res Grp, San Javier - Spain
[3] Inst Telecomunicacoes, Lisbon - Portugal
[4] Inst Politecn Viana do Castelo, Escola Super Desporto & Lazer, Rua Escola Ind & Comercial Nun Alvares, P-4900347 Viana Do Castelo - Portugal
[5] UNESP Sao Paulo State Univ, Sch Sci, Phys Educ Dept, MOVI LAB Human Movement Res Lab, Grad Program Move, Bauru, SP - Brazil
[6] Univ Basque Country, Dept Phys Educ & Sport, UPV EHU, Vitoria - Spain
Total Affiliations: 6
Document type: Journal article
Source: PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART P-JOURNAL OF SPORTS ENGINEERING AND TECHNOLOGY; SEP 2021.
Web of Science Citations: 0
Abstract

Due to the high number of variables reported from tracking systems, the interest in data reduction techniques has grown. To date, principal component analysis (PCA) has been performed in soccer, but since the results depend on the variables included, a lack of objectivity continues to be of concern. The aim of this study was to highlight the variables that compose the principal components (PC) in semi-professional soccer, including all variables extracted from tracking systems. Data were collected from a semi-professional Spanish team that participated in 10 matches. From more than 250 variables, the PCA grouped a total of 19 variables in six PCs, explaining 72% of players' external load. All variables were related to centripetal force, high intensity running, and high-intensity efforts and short efforts. Interestingly, the first PC was composed of four variables related to centripetal force. The current exploratory analysis indicated that, in addition to traditional high-intensity displacement variables, force measures should also be considered in soccer match analysis due to their effect on a player's external load. (AU)

FAPESP's process: 18/02965-7 - Influence of sleep quality, postactivation potentiation and cold-water immersion on kicking mechanics and performance in young soccer players
Grantee:Luiz Henrique Palucci Vieira
Support Opportunities: Scholarships in Brazil - Doctorate