Uh, if this artificial leg was such an advantage, wouldn't amputees be faster than they are? The same technology is available to all, so wouldn't it make sense that these people would be running faster than 53 if they had an advantage? A MEDIOCRE HS sophomore can run 53. If the leg was an advantage, you're telling me NONE of these people except Oscar naturally have more talent than some no-name 16 year old? Yeah, right.