Título Assessment of movement variability and time in a football reactive agility task depending on constraints
Autores Morral Yepes M. , GONZALO SKOK, OLIVER, Fernández Valdés B. , Bishop C. , Tuyà S. , Moras Feliu G.
Publicación externa No
Medio SPORTS BIOMECHANICS
Alcance Article
Naturaleza Científica
Cuartil JCR 2
Cuartil SJR 2
Impacto JCR 2
Impacto SJR 0.684
Web https://www.scopus.com/inward/record.uri?eid=2-s2.0-85163015500&doi=10.1080%2f14763141.2023.2214533&partnerID=40&md5=30b1f08d6b123776768d269d000a43f3
Fecha de publicacion 26/06/2023
ISI 001013432700001
Scopus Id 2-s2.0-85163015500
DOI 10.1080/14763141.2023.2214533
Abstract The aims of this study were to (1) analyse time and movement variability in a football (soccer) agility task performed with or without ball, both in the following situations a) reacting to the movement of two players with a single exit gate (R1), b) reacting to the movement of one player with two possible exit gates (R2) and c) not reacting to a stimulus; and, (2) analyse the relationship between time and movement variability. Seventeen semi-professional female football players participated in the study. Acceleration was measured using an inertial measurement unit attached to each player through an elastic belt close to the sacrum. Entropy was calculated from the acceleration signal and time was extracted using a magnet-based timing system. Movement variability was reduced whereas time increased when adding the ball and/or the reaction, finding no differences between R1 and R2. A moderate negative correlation was found between time and movement variability (r = -0.56, p < 0.01). Our findings demonstrate that increasing the difficulty and/or the amount of information from the environment, decreased movement variability and increased the time. The measurement of movement variability in addition to time in an agility task can be used to determine the mastery level of players. © 2023 International Society of Biomechanics in Sports.
Palabras clave dribbling; entropy; reaction; “Change of direction”; “skill acquisition”
Miembros de la Universidad Loyola

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