Bolt's 9.58 in Slow Motion

[James_Smith]

@stilljd_5

My background is more in the mechanical/construction side, building power stations etc. I also spent a lot of freetime reading books and watching anything I could associated with human movement.

I cannot gasp the concept that past the point of equilibrium with the knee that a higher heel raise will be faster or more efficient given the extra time/energy required for the extra movement. If Usain was mechanical I would say he is efficent primilarily because he seems to have a more efficient exhaust/recovery cycle.

The problem is quantitatively/qualitatively determing what you’re describing as equilibrium from one sprinter to the next.

Lever lengths, tissue attachment points, and power outputs would all effect the degree of knee bend during recovery from one sprinter to the next.

Interesting to discuss, however.

It obviously makes sense to only address mechanical issues with sprinters that are clearly inhibiting their full potential from being realized.