They are present to help prevent accidents, but gymnasts are penalised 0.4 of a point if they need help. Gymnasts are allowed help into their starting positions for the rings and horizontal bars. Competitors are allowed to use bandages or leather grips on their hands. Coaching during routines is prohibited. Gymnasts are not allowed to leave the arena during competition without permission.
Unsporting behaviour is penalised.
Dismounts should end with the feet together in a standing position. There are two panels of judges who rate each performance. Two difficulty judges confer to give each routine a difficulty rating out of 10, depending on the manoeuvres it contains. Six execution judges independently rate each performance for form and execution. They give each routine a mark out of ten, deducting fractions of points for mistakes.