The athletic Wilfred Macena works out with a soccer ball practicing using his new prosthetic leg. Dr. Bob Gaily, left, guides Macena in shifting his weight on his prosthetic leg. Macena, 25, wielder, mechanic, and part-time soccer coach, is a quick learner and started walking with his prosthetic leg within an hour after being fitted. Three months after the 7.0-magnitude earthquake some Haitian amputees are part of a handful of quake survivors who are learning how to walk again. CARL JUSTE / MIAMI HERALD STAFF