The competition

Archery is a competition between people firing arrows from a bow and aiming to score the most points by hitting the smallest, inner rings on a 1.22-metre circular target of concentric rings. The fibreglass recurve bows today can launch aluminium or carbon-graphite arrows at speeds of about 240 kilometres per hour over the 70-metre distance.

Rules 

The rules say archers must stand to shoot - if they can. Paralysed from the waist down, New Zealand's Neroli Fairhall couldn't. So, she shot from a wheelchair in 1984 and placed 35th in one of the most rousing moments of Olympic archery history.

Taken from site: www.olympics.com/eng/