Hips and hips are not the same place. Hip is the bone connecting the upper body and the lower body, and hip is the muscle group below the hip bone. These two points are easy to understand. Hip twisting is to use the crotch to drive the rear muscles to move, while moving the crotch is to combine the waist and crotch, and the movement direction and trajectory of the left and right hips are different.
Simply saying that your hips will of course follow, but because of the different strength, direction and trajectory, it does not give people the feeling of "twisting your hips".
Jazz dance, that is, American modern dance, is a fast and dynamic rhythmic dance, which belongs to an extroverted dance, unlike the introverted dance shown by classical ballet or modern dance. Jazz dance was originally an extension of African dance, brought to the United States by black people who were sold as slaves, and gradually evolved into a localized popular dance in the United States. Jazz dance is mainly a dance that pursues pleasure, liveliness and vitality. Its characteristic is that it can jump freely, without being confined to one form like traditional classical ballet, and observing the inherent posture. However, with the development of American pop culture, the popularity of ballet and the promotion of Broadway culture, especially the emergence of street dance culture system, jazz dance has been completely different from the previous forms of vest, pants, shoes and crutches. After learning from others, it has gradually formed its own unique style, which is no longer a form of free improvisation, especially in the tide of the development of pop music and dance MV in the late 20th century. In order to meet the needs of modern performances, it used to be completely liberalized.