Using the m-file CoordenadasPolares.m facilitates the researcher to apply the polar coordinates technique. Although it has been specifically developed for use in the context of sport, its characteristics make it applicable to the observation of other natural contexts. A space proximity connection between the zones in their right and left laterality was found, in the ultra-defensive and ultra-offensive field areas. Furthermore, a space proximity connection backwards was found in the ultra-offensive field areas, which stresses the intern logic of soccer. A proximity connection backwards and forwards appears also in the defensive, middle and offensive field areas, with the intention of reaching middle or superior field areas. Symmetry related to a longitudinal axis which divides the field into a right and a left laterality was found, besides a transverse symmetry axis which divides the field into a forward and a backward area. This is, the area covered by the teams is similar in the right and left laterality as well as in the forward and backward areas. The categories (zones) which are activated or inhibited by the focal behaviours considered in this study (Z5 and Z12) show that the tactical/strategic component is clearly influenced by the zone of play in which it is produced. In this regard, it is necessary to highlight the importance of the concept of `oriented space`, which characterizes and determines the evolution of play in soccer. The `spatial proximity` of the use of space (using zones that are contiguous) is another feature that determines the specific nature of play. Despite the habitual movement of the ball from one goal area to another we have been able to demonstrate how the use of space by the two opposing teams has significant unique features. An example of this would be the maps of relationships estimated for both zones (Z5 and Z12). The repertory of zones that inhibit and/or stimulate each of the focal zones underlines the important role played by space (proximity or distance from the goal being attacked or defended) in the dynamics of play. The description of events, respecting their chronological order of appearance, is a first step for describing and understanding the nature of play which often remains hidden from the observer`s view. Having more information about rivals, knowing their `preferred routes` for play and the patterns of play they tend to use during a match will facilitate a team`s preparation and decisionmaking to use in a future encounter.
© Copyright 2008 World Congress of Performance Analysis of Sport VIII. Veröffentlicht von Otto-von-Guericke-Universität, Department of Sports Science. Alle Rechte vorbehalten.