Supertraining

I've read everyone else's thoughts- here's my 2 cents for what it's worth:
   
  What percentage of running propulsion comes from the gastrocs and foot?  And 
how much fatigue in those muscles over the course of 400M is considered normal? 
 There will never be fatigue in the prostheses, which, all else being equal, 
gives him an advantage.  I think that his stride length would be less affected 
by fatigue(somewhat less, his quads hams and hip musculature are still affected 
like any other runner, but less) than an able bodied runner.
   
  And are there engineers out there right now trying to put more bounce into 
the next generation of prosthetic in order to better compete.  At what point 
does the prosthetic provide a "considerable advantage"
   
  Hopefully I'm not out in left field on this- it's an interesting discussion-
   
  Mark Powell, MS, ATC, CSCS
  Syracuse, NY, USA