| Soccer bear the reputation of No.1 sports in today's world, which has been widely carried on. Its unique character attracts millions of fans. The top level event World Cup has also become a gala for the players and the fans. The teams of various level and style also brought us a big soccer feast. The world cup has also created a good learning and research chance for soccer researchers and it did bring many results. Over one century's development, we can tell that the soccer match has entered a brand new era. Attack and defense has been and will always be the theme of the soccer match. Try to get more goals in attack and lose less in defense is a basic principle in the soccer match. Once the principle has been grasped, it will be counted on win-lose. It's no need to say the importance of defense. In a match, each successful defense guarantees not only the loss on the ball of the opponent and the chances of attack but creates a precious chance for their own team. The high level teams in matches like World Cup show a new trend in the use of defense technology. Each team has been focusing on how to make effective defense to take up an advantageous position in the match.Through the statistical analysis of 116 domestic published articles in sports journals related with world cup, the writer concluded that the research mainly focused on defense and attack. The research mainly falls on attack, which takes up 67%. If the researches on comprehensive technologies are concerned, the percentage will be higher. Meanwhile the papers on attack only take up 25%. As is know to all, both defense and attack are important in soccer, focus should also be geared to defense.Through collecting and analyzing materials of world Cup 2006 by the methods of reference, video observation, statistical, comparative analyzing, and the writer carried out a systematic and comprehensive discussion and analysis on the relationship between the score and the use of the technology and drew the conclusion:Challenge for the ball is the most frequent used technology in defense, and controlling challenge influences the success of a match most. Successful rate goes up, the loss will decrease and the chances of rush and move will also increase. Challenge mainly appears at the middle and rear field and the success rate tend to be high in this field. Fullback and infield players challenge more and frontiers tend to challenge less. The first half and the latter part have the same amount of challenges.Controlling challenges are most successful and stop rush and moves are the main characters. Stops mainly appear in the middle and rear field. Stops mainly appear in the middle path of middle and rear field. Middle field players stops more and the fullbacks next to them. Frontiers stop the least. The chances are the same for the first and latter half. The tackles are the least used technology among the four major defense technologies. Controlling tackles feature in tackle and move. Tackles mainly appear in the rear field and success rate are high. Middle field players and the fullbacks use this technology more.Air ball defense mainly depends on head ball. Controlling balls focus on heading and move. Head balls mainly appear in the middle path. Fullbacks have more chances of defense.
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