Hip Hop (English name) originated in new york, USA. It is the product of jazz dance in the 1990s. Its movements are various combinations of walking, running and jumping, which are varied. It is made up of joints such as head, neck, shoulders, upper limbs and trunk through flexion and extension, rotation, rotation, sparkling and wave-like twisting. Every movement has its specific fitness effect, which not only pays attention to the coordination between upper and lower limbs, abdomen and back, head and trunk, but also pays attention to the independent movement of each part. Therefore, street dance not only has the functions of improving heart and lung function, reducing fat, enhancing muscle elasticity and enhancing ligament flexibility, but also has the functions of coordinating muscle groups in various parts of the human body, shaping beautiful posture, improving human coordination ability and cultivating aesthetic feeling. Hip-hop is a street culture developed by African-Americans, and it is a kind of exercise to vent emotions. It is characterized by strong explosive force, and the movements of limbs are exaggerated compared with other dances. The most attractive thing is to bring a warm feeling with the vitality of the whole body. Hip-hop makes people pay attention, have strong interest, and act beautifully and casually. At the same time, street dance also has the function of slimming, because street dance is a low-intensity aerobic exercise, and the function of consuming whole body fat is quite strong in an hour's exercise. In addition, street dance is a small muscle exercise. Regular practice can increase the coordination of your whole body and make your body proportion more standard. The word Jazz was originally dance music, and it was not until 1900 that the musical term "jazz" was used. Before that, it was called "Jass". With the birth of 1880 jazz, the word jazz dance came into being. Because jazz has always been quite lively in performance, there will be noisy, manic and lively explanations. The essence of jazz dance is a free and simple expression, which directly expresses the inner feelings with the shaking and twisting of the body. Just like when we hear our favorite music, we naturally express our feelings from the heart, and our bodies can't help moving with the rhythm of the music, such as snapping our fingers and swinging our first foot, sometimes excited and sometimes slowly and gently dissolving into the music. Jazz dance is a fast and dynamic rhythmic dance, which belongs to extroverted dance, unlike the introverted dance shown by classical ballet or modern dance. Jazz dance is mainly the expression of action and melody. Its main purpose is to entertain others and yourself, and it can bring you a good time to get along with others. This is also the reason why its performance is not publicity at all. The joyful atmosphere and spirit in the dance are very infectious. Although you must have very good skills to be a successful jazz dancer, almost everyone can master its basic dance steps, and the performance space of jazz dance is very broad. Personal color and unique style are the most striking places when dancing. Jazz dance is mainly a dance that pursues pleasure, liveliness and vitality. Its characteristic is that it can dance freely, unlike traditional classical ballet, which must stick to one form and follow the inherent posture, but it is different from disco dance, which is completely entertaining itself and still has a modern law in freedom. For example, you can express your feelings with jazz music, and you can also use or imitate other dance techniques; For example, in footwork and movements, the position and principle of ballet, the sensitivity of tap dancing skills, the contraction and relaxation of modern dance body, the pace and hips of Latin dance, and the moving position of the upper body of oriental dance are applied. Style jazz dance and modern jazz dance.