Stepping on the London subway train five years ago, the thirtysomething marketing manager never imagined her morning commute might eventually lead to the Paralympic Games. Now, that's exactly where Britain's Martine Wright is setting her sights. Wright lost both legs when a suicide bomber blew himself up on a subway train near London's Aldgate station on the morning of July 7, 2005. She also suffered a fractured skull and severe arm injuries. Though she was one of the most seriously hurt that day, Wright is now aiming for a spot on the British Paralympic volleyball team in 2012. I would love, absolutely love, to be part of the Paralympics in 2012, Wright told CNN affiliate ITN last month. I mean, if you had said that to me five years ago, I would have thought that you were absolutely mad. But to go back to London, where I was born, and to do something so positive -- after I left on such a negative -- would be absolutely amazing. Four bombs were set off that day in July, on three subway trains and a bus. Fifty-six people were killed, including the four bombers, and more than 770 were wounded. The bombings happened the day after the International Olympic Committee announced London would be hosting the Olympic and Paralympic Games in 2012. Wright said she made a promise to herself and her family after the attacks to grab every single opportunity that she could. I think I 've