Charlie, in the Vancouver tapes you said that there should’nt be any difference between a sprinter and a shot putter for the first 5 meters of a race. However, after this point there is a increasing elastic component as the knee angles change. When watching the head on view of Ben sprinting, provided during the video segment on the tapes, you can see a bounce or pop to each step. I am guessing this is evidence of the elastic component.
What I would like to know is;
1a. should this elastic bounce be felt by the sprinter? b. should it be encouraged?
2. if yes, how soon should it be felt. e.g. as soon as the sprinter is upright, before that, at 20 meters?