From http://www.paralympic.org/wheelchair-dance-sport/about
Wheelchair DanceSport is an elegant, graceful and stylish sport which involves athletes with a physical impairment that affects the lower limbs.
Participants can compete "combi style", dancing with an able bodied (standing) partner, or "duo dance" for two wheelchair users together.
Group dance involves wheelchair users only or together with able-bodied partners whereas single dance sees a wheelchair user dance alone.
Standard dances include waltz, tango, Viennese waltz, slow foxtrot and quickstep.
Latin American dances include the samba, cha-cha-cha, rumba, paso doble and jive.
Freestyle / showdance can include the standard dances (conventional) or any style for presentation (folk, hip hop, latin, standard, ballet, contemporary, street dance, salsa, Argentinean tango, cumbia, belly dance, etc.).
There are also formation dances for four, six or eight couples dancing in formation.
Since 1998 the sport has been governed by the IPC and co-ordinated by the IPC Wheelchair Dance Sport Technical Committee which incorporates the rules of the World Dance Sport Federation (WDSF). The sport is not yet part of the summer Paralympic Games sports programme.
Today the sport is widely practiced in 29 countries and the last World Championships took place in 2013 in Tokyo, Japan. In 2014 the European Championships was held in Lomianki, Poland and, for the first time, the sport took part in the Asian Para Games, in Incheon, South Korea.
Wheelchair Dance Sport can be also beneficial to very young people with cerebral palsy and other disabilities.
Wheelchair ballroom dancing is a great strategy for rehabilitation because it involves movements of almost the entire body, promotes gender self-awareness, and helps improve memory.
Wheelchair Dance Sport negates boundaries between worlds of healthy and disabled people. Collaboration with a healthy partner is not only achievable but also very rewarding.
More about this sport here: http://www.paralympic.org/wheelchair-dance-sport