By Samuel Speciale Fawn Washington is hunched over with her right foot forward and left foot back. In one motion she pivots on the heel of her left shoe, turns and extends an arm upward, simulating a discus throw.After 15 years of practice, it's a motion the coach and former high school track standout is all too familiar with, even though it's one she's had to reacquaint herself with after having both legs amputated below the knee.She stands on prosthetics.