"Take your positions", and the starter gives a "start signal" (gun, electric whistle, whistle or password).

When the starter gives the password of "take your positions", the athlete must have at least one foot at the front of the starting platform ready to start, and the arm position is not limited. When all the athletes have a rest, the starter sends out a "start signal" (gun, electric whistle, whistle or password). Athletes can't start until they hear the "start signal".