Analysis Of The Kinematic Characteristics Of Walk In Rumba Dance

Sports dance also known as "international standard ballroom dance",is one of the sports.It is divided into two groups of moden dance and Latin dance,10 different styles of dance.Among them,Latin dance is divided into five items,namely rumba,cha-cha-cha,samba,paso doble and jive.In this study,the walk movement,which is indispensable in rumba dance,is selected as the research object.Three dimensional image analysis method was used to obtain seven walk kinematics characteristics of excellent athletes and ordinary special students in rumba dancesports,including: Rumba walk in the movement of body center of gravity displacement,velocity,time,motion characteristics and the sides of the hip and the change of the Angle of the shoulder,hip,knee,ankle,Lord,leg,hip,knee,ankle,speed and the first leg of movement and dynamic of Angle movement in the leg,hip,knee,ankle,etc to test,statistics and analysis,the significance is to reveal the movement technology movement process characteristics and laws,for the future in the diagnosis and analysis of sports dance training rumba has distinguishing feature of high level of technology to provide theoretical basis and data support,explore the rumba seven walk the movement parts of each joint trajectory,So as to enhance the scientific training methods of sports dance and the theoretical basis of sports.The conclusions of this study are as follows:1.The body center of gravity displacement characteristics of walk movement in rumba dance: excellent athletes perform well in the movement directions of X,Y and Z,especially the movement displacement of the center of gravity in the front and rear directions of the X axis is obvious;There was no significant difference in the center of gravity of the left and right sides between the elite players and the specialized students(P>0.05).There was a significant difference in the center of gravity displacement in the front and rear directions of X axis and the vertical direction of Z axis(P<0.05).It is proved that the center of gravity displacement of the special students reached the level of the excellent players in the Y-axis direction,but there is still a large gap between the forward and backward directions of the X-axis and the vertical direction of the z-axis.2.Body center of gravity speed characteristics of walk movement in rumba dance: excellent athletes have excellent overall performance of center of gravity in body movement,and the speed of center of gravity is stable;In the X-axis check forward walk,there is a significant difference between excellent players and specialized students.There is no significant difference in the center of gravity speed between elite athletes and special students in the Y-axis.In the z-axis back walk,there is a significant difference between excellent players and specialized students.3.Time feature of body center of gravity in rumba dance: different players have different performances in the synchro of music rhythm,while there is no significant difference in the time of body center of gravity between excellent players and special students.However,from the point of view of the time of specific stage of each movement,there are differences in the time of body center of gravity displacement in different stages of rumba walk movement.4.The Angle of shoulder joint on both sides of the body and the hip joint in rumba dance: the Angle of shoulder joint on both sides of the body of the students is relatively small,and there are some mistakes and problems in the hip joint Angle in several movements such as check forward walk,that is,the twisting Angle of the body hip joint and the shoulder joint is too small,and the range of movements is not enough.5.Walk in the rumba movement of legs and hip,knee,ankle joint velocity characteristics: excellent players in the first leg and dynamic changes in the rate of leg hip and knee are outstanding,dedicated students main legs and motivation in hip and knee speed performance is insufficient,prove the existence of special students in at the foot of the walk action rob beat,talented players and specialized students in the main,there is no obvious dynamic changes in the rate of leg ankle parameters change,have no significant difference.6.The Angle characteristics of hip,knee and ankle joints of the main leg and the power leg in the walk in rumba dance: the Angle of hip and ankle joints of the main leg of the special students is larger in the two movements of delay back walk and delay forward walk(straight leg),while the Angle of knee joints is smaller.The hip and knee angles of the power leg are smaller in these two motions and the ankle angles are larger.their body center of gravity is not in place,and their support is poor.