Research On Difficulty Characteristic Change Of Body Movement In Artistic Gymnastics

The development of competitive Rhythmic Gymnastics is promoted forward by the changing and innovation of the rule, the body movement difficulty that occupy a major position is the core of Rhythmic Gymnastics. In recent decades, seen from the rules, the body movement difficulty have a different type of variation characteristic in any version, has been leading the advancement and development of Rhythmic Gymnastics. During layout sets should grasp the characteristics of body movement difficulties, master feature of device technology, prominent feature of sets actions. Therefore, we should see body movement difficulty in the vision of development, and require in-depth understanding. So that we can better to explore the new body movement difficulty, to elevate the level of rhythmic gymnastics athletes to the world level.Using literature, expert interviews, comparative analysis, mathematical statistics in this paper, inspect the documents and information related with variation Characteristic of gymnastics body movement difficulties in the reading room and China Journal net.2005,2009,2013three versions Scoring rules of Rhythmic Gymnastics and Rhythmic Gymnastics Championships on2007,2011,2013World Rhythmic Gymnastics Individual Rhythmic Gymnastics World Championships and the2013collective total video sets32sets, mainly regard the body movement difficulty as study object. Through comparative study between three version Scoring rules of Rhythmic Gymnastics and three World Rhythmic Gymnastics Championships, analysis sorting and collecting data by mathematical statistics, analysis the number, category, score and rank analysis of Rhythmic gymnastics body movement difficulties, and analysis each type of variation Characteristic of Body Movement completely. The results showed that:(1) The referee group and personnel structures were reclassified in new rule;(2) The body movement difficulties reduced from four categories to three categories in new rule;(3) comparing with previous two rules the quantities of body movement difficulty is reduced sharply, the number of sets required is also reduced in new rule;(4) comparing with previous two rules the score of body movement difficulty is changed in new rule, in previous two rules the highest score reach1point, in the new rules highest score reach0.5point;(5) The difficulty increase the dance series, rotation and throw the dynamic movement difficulties in new rule, increasing the ornamental of rhythmic gymnastics.