At the Paralympic Games, judo is open to athletes with visual impairment. Except for the fact that contestants have a loose grip on each other's Judo suits before officials call "Hajime!" to start a match, and officals call "Matte!" to pause a match to allow contestants to return to the center and regrip when contact is broken, the game rules are mostly the same as that of able-bodied judo. Paralympic judo is an extremely exhausting sport as contestants are always in a grip position. There are seven weight classes for men, and six weight classes for women. Athletes with different levels of visual impairment can compete with each other.