José Ignacio Alonso Roque

Influence of the efficacy values in numerical equality on the condition of winner or loser in the 2003 Water Polo World Championship

The purpose of this study was to find the efficacy values in the playing micro-situations in numerical equality with or without ball possession and to analyze the relation between these and the condition of winner or loser. We analysed the matches of the X World Championship of Water polo which did not end in a draw. Playing micro-situations in numerical equality were evaluated by means of coefficients, which obtain efficacy values. Some differences were revealed, in male category, in the following coefficients with possession: concretion, definition, resolution, accuracy and blocked shots received (p<.001) and precision (p=.001). Without possession: concretion, definition, resolution, accuracy and blocked shots made (p<.001) and precision (p=.001). In female category with the following coefficients with possession: concretion, definition and precision (p<.001), resolution (p=.001), possibility (p=.005) and accuracy (p=.017). Without possession: concretion, definition and precision (p<.001), resolution (p...The purpose of this study was to find the efficacy values in the playing micro-situations in numerical equality with or without ball possession and to analyze the relation between these and the condition of winner or loser. We analysed the matches of the X World Championship of Water polo which did not end in a draw. Playing micro-situations in numerical equality were evaluated by means of coefficients, which obtain efficacy values. Some differences were revealed, in male category, in the following coefficients with possession: concretion, definition, resolution, accuracy and blocked shots received (p<.001) and precision (p=.001). Without possession: concretion, definition, resolution, accuracy and blocked shots made (p<.001) and precision (p=.001). In female category with the following coefficients with possession: concretion, definition and precision (p<.001), resolution (p=.001), possibility (p=.005) and accuracy (p=.017). Without possession: concretion, definition and precision (p<.001), resolution (p=.001), possibility (p=.005) and accuracy (p=.017); taking as a reference a value of p<.05. To conclude with, we can say that in twelve out of the fourteen efficacy coefficients proposed for evaluating the playing micro-situations in numerical equality with or without ball possession in male and female water polo there are significant differences between the condition of winner or loser.