Research On Choreography Feature And Level Evaluation Of The Twelve Fitness Exercises Of National Regulations

China is in the rapid accumulation of material wealth,spiritual wealth in an orderly follow-up to create a harmonious society period,at this stage,the implementation of the national cultural sector to launch 12 sets of square gymnastics dance for the masses practice,has a very important guiding significance.However,this twelve sets of aerobics dance style is different,the degree of difficulty is different,the state to promote it to the public did not attach detailed instructions,making different levels of fitness can not correctly choose their own tracks for targeted practice.Based on this,this paper uses the methods of literature,comprehensive evaluation,mathematical statistics and other methods,under the guidance of the principle of system,guiding principle,objective principle,operability principle and simple principle,from the rhythm of the repertoire,Strength,explicit movement and human function in five aspects,the establishment of square gymnastics dance level assessment criteria,by analyzing the twelve sets of fitness dancing choreography characteristics and test subjects after exercise the heart rate indicators,its level of assessment,the Taking the weight calculation to get the following conclusions:In addition,including folk songs,disco,hip-hop and other different styles;length are in between 3 to 6 minutes,in line with most of the mass athletic ability;beat the vast majority of the rhythm of the track For the 4/4 beat,the fastest is the "horse horse Pentium",the slowest is the "happy dance",the difference is more disparate.Second,the structure of the characteristics of the assessment: the composition of the number of combinations from 6 to 13 groups evenly distributed,the track symmetry of the action requirements are not strict,reflecting the activities of the dance activities of the diversity and flexibility;Dance combination of about 11% of the whole action,including hiphop,Latin dance,jazz dance three styles.Third,the strength of the strength of the assessment: mainly by the number of highintensity pace and the proportion of the total number of steps to assess,"tonight dance up","stand in the grassland Beijing","small apple","happy dance" this "Smile","proud builder","the most dazzling national wind" and "Chinese flavor" increased the impact of the low impact The pace of the pace and the number of high-impact pace;"times that cool","Chinese beauty","square style","stroke horse Pentium" fitness dance more difficult,continuous emergence of multiple high-impact pace and complex upper limb movements.Fourth,the external action characteristics of assessment: the direction of the body changes the number of times,"times children cool","horse horse Pentium" and "square style" up to 12 times,"tonight dance up" and "happy dance" at least 5 times,The rest are between the two;action frequency,fast 4 sets,5 sets of speed,slow 3 sets.Fifth,before and after the movement of human function indicators assessment: "times children cool","stroke horse Pentium","square style" before and after the heart rate of difference were 60,66 and 66 times;"times children cool"," "," Square style " before and after exercise systolic pressure difference were 16,13 and 15(mmHg),indicating that these sets of tracks on the human body function the greatest impact.Sixth,combined with the above factors,the state will be 12 sets of square gymnastics dancing as the following six levels: one includes "happy dance";two include "small apple","stand in the grassland Beijing","tonight "Three" including "the most glorious national wind","Chinese flavor";four include "smile","pride of builders";five include "times children cool","Chinese beauty";six include "Square style","stroke horse Pentium".