Originally Posted by Steve Prefontaine
The human lower leg has a lot of "spring" by storing and releasing energy in the Achilles, plantar fascia, calf muscles, etc.
I hope his "legs" give him a comparable amount of spring.
Exactly and I believe this is what they found when they investigated it and allowed him back in. Sorry, but if we're going to go this far, we could say the black runners have an advantage with a longer Achilles. Any fantasy belief of an advantage is knocked down by the fact they are artificial legs.