 Complete the following phrase:  Buchan originally was a track and field competitor. She was also considered a top U.S. cyclist until a road race accident in 1982 shattered her skull, placing her into a coma for two months and causing permanent brain injuries. Following surgeries and rehabilitation, she returned to the track at the 1988 Summer Paralympics in Seoul, winning a silver in the 800m. Buchan cycled against men at the 2000 Paralympics in Sydney, finishing two races at 9th and 10th. She competed at the 