Did you all see the Olympic runner with artificial legs just run the qualifying round of the 400 meters? He came in 2nd without even really trying. The top 3 go onto the next round so he said he was conserving a little energy for later.
It was just amazing. Some other competitiors complained that the artificial legs might give him an advantage, but the Olympic committee looked into the situation throughly and determined that he did NOT have any advantage, so he was allowed to compete. If you missed it, be sure to catch it on the reruns, or watch him run in the next round.
Here's a picture. ht tp://sports.yahoo.com/news/olympics--oscar-pistorius-steals-spotlight-with-olympic-debut.html
And here's an expert explaining why there is no advantage. www.telegraph.co.uk/sport/olympics/olympicsvideo/9408614/Why-Oscar-Pistorius-prosthetic-leg-cant-give-advantage.html
As I understand it, it's mostly because the prosthetic is a passive devise and the runner is missing the musle power from the part of leg that is missing, and must rely just on what he has left.
This reminds me of a place kicker in the NFL named Tom Dempsey in the 1970's.
He was born without toes on his right foot and kicked with a flat front edged shoe. He once kicked a 63 yard filed goal and I remember some saying he had an unfair advantage.
This was back in the days when not all place kickers did do soccer style.