The core speed of dancing refers to the muscle contraction speed of the core area of the body when dancing. In dance, core strength and stability are very important, and core speed is one of the manifestations of core strength and stability. Core speed refers to the ability of muscles in the core area of the body to contract quickly in a short time. When dancing, the core speed can help the dancer to quickly adjust the body center of gravity and posture, maintain the stability and balance of the body, and improve the coordination and flexibility of the dancer. In dance training, we can improve the core speed by practicing the rapid contraction of core muscles. Some common exercises include rapid belly rolling, sit-ups, flat support and so on.