I guess you're referring to the South African runner that wasn't allowed to run in the Olympics with artificial legs. If I recall, the issue wasn't an energy a

I guess you're referring to the South African runner that wasn't allowed to run in the Olympics with artificial legs. If I recall, the issue wasn't an energy advantage, but the recovery. He could train at maximum level, and simply grab a new pair - whereas his competitors would have to worry about injury. (So I guess there was an energy equation, but a different one - the energy of the artificial legs slowly breaking). In this case, I'd guess that would be a non issue. However, I equally don't see it as being a huge advantage... At the outside, perhaps a weight one.