Spider leg is a kind of dance action that requires high flexibility, that is, the legs are separated into an arch, the upper body leans forward 90 degrees, and the center of gravity sinks. The difficulty of this movement is that you can't support the ground with your hands, you can only rely on the waist strength to make your body parallel to the ground. It should be noted that spider legs are extremely dangerous, ranging from sprains to fractures. Therefore, we must proceed from our own physical condition, and people who have not received professional training should never imitate them at will.