Paralympic association football
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Paralympic football consists of adaptations of the sport of association football for athletes with a physical disability. These sports are typically played using International Federation of Association Football (FIFA) rules, with modifications to the field of play, equipment, numbers of players, and other rules as required to make the game suitable for the athletes.
Football 5-a-side 
Football 5-a-side, also known as futal and blind football, is an adaptation of football for athletes with visual impairments including blindness. The sport, governed by the International Blind Sports Federation (IBSA), is played with modified FIFA rules. The field of play is smaller, and is surrounded by boards. Teams are reduced to five players, including the goalkeeper, per team. Teams may also use one guide, who is positioned off the field of play, to assist in directing players. The ball is equipped with a noise-making device to allow players to locate it by sound. Matches consist of two 25-minute halves, with a ten-minute break at half-time.
Football 5-a-side players are assigned to one of three sport classes based on their level of visual impairment:
- B1 - Totally or almost totally blind; from no light perception up to light perception but inability to recognise the shape of a hand.
- B2 - Partially sighted; able to recognise the shape of a hand up to a visual acuity of 2/60 or a visual field of less than 5 degrees.
- B3 - Partially sighted; visual acuity from 2/60 to 6/60 or visual field from 5 to 20 degrees
Teams are permitted to use sighted athletes as goalkeepers and guides; sighted goalkeepers cannot have been registered with FIFA for at least five years.
Two types of competition exist. For Class B1 games, only athletes with sport class B1 are permitted as players, with the exception of the goalkeepers and the guides, who may be class B2, B3, or sighted. For Class B2/B3 games, teams can field players in sport classes B2 and B3; at least two B2 players must be on the field at all times.
Football 5-a-side in Europe was developed in Spain. The first Spanish national championships took place in Spain in 1986. In South America, there are records of a Brazilian Tournament organized in 1980. European and American Championships took place in 1997, followed by the first World Championships in 1998. The sport was added to the Summer Paralympic Games in 2004.
Brazil was champion of the world tournaments in 1998, 2000 and 2010, and Argentina won in 2002 and 2006.
Football 7-a-side 
Football 7-a-side is an adaptation of association football for athletes with cerebral palsy and other neurological disorders, including stroke and traumatic brain injury. The sport is governed by the Cerebral Palsy International Sports and Recreation Association (CP-ISRA). The sport is played with modified FIFA rules. Among the modifications are a reduced field of play, a reduction in the number of players, elimination of the offside rule, and permission for one-handed throw-ins. Matches consist of two thirty-minute halves, with a fifteen-minute half-time break.
Players competing in Football 7-a-side are given a sport class based on their level of disability. Eligible classes are:
- C5: Athletes with difficulties when walking and running, but not in standing or when kicking the ball.
- C6: Athletes with control and co-ordination problems of their upper limbs, especially when running.
- C7: Athletes with hemiplegia.
- C8: Minimally disabled athletes; they must meet eligibility criteria and have an obvious impairment that has impact on the sport of football.
Teams must field at least one class C5 or C6 player at all times. No more than two players of class C8 are permitted to play at the same time.
International competition in Football 7-a-side began at the 1978 CP-ISRA International Games in Edinburgh, Scotland. The sport was added to the Summer Paralympic Games at the 1984 Summer Paralympics in New York, U.S., and has been played at every Summer Games since.
See also 
- Cerebral Palsy International Sports and Recreation Association
- International Blind Sports Federation
- Paralympic games
- Paralympic sports
- British Blind Sport
- 2010 IBSA World Blind Football Championship
- International Blind Sport Federation - Football 5-a-side
- International Paralympic Committee - Football 5-a-side
- Cerebral Palsy International Sports and Recreation Association - Football 7-a-side
- International Paralympic Committee - Football 7-a-side
- CPISRA Football 7-a-side World Championships 2007 Official site
- news.bbc.co.uk - How blind football is played
- Documentary about paralympic association football