The vault is an event as well as the primary piece of equipment used in that event. Unlike most of the gymnastic events employing apparatuses, the vault is common to both men's and women's competition, with little difference between the two categories. A gymnast sprints down a runway, which is a maximum of in length, before leaping onto a springboard. Harnessing the energy of the spring, the gymnast directs his or her body hands-first towards the vault. Body position is maintained while "popping" (blocking using only a shoulder movement) the vaulting platform. The gymnast then rotates his or her body to land in a standing position on the far side of the vault. In advanced gymnastics, multiple twists and somersaults may be added before landing. Successful vaults depend on the speed of the run, the length of the hurdle, the power the gymnast generates from the legs and shoulder girdle, kinesthetic awareness in the air, and the speed of rotation in the case of more difficult and complex vaults.