I’d seen that a while back. Pretty cool. Very well produced.
There are a couple of issues that I want to address:
1)It seemed to me that Asafa’s sprint form missed some major markers, am I wrong on this?
Which ones would these be? I actually think he looks great.
2) How close is Tyson Gay to the sprint model? I don’t have an acute eye for this, but he was noticeably better at full stride than Asafa.
I’m not sure to be honest. At the time I had that conversation with Ralph, Gay was not at his current level. I also think Gay is quite good but I’m not sure if I think he’s better than Powell.
3) Is the size of your psoas an indicator of speed?
Not sure. I’ve heard this observation several times before. Never seen any research to indicate that it’s the case. It certainly seems to be somewhat more prominent in the best of the best (i.e. Flojo).
4) I know in the Barry Ross thread, Mike mentioned that Flo Jo was in Mann’s top five all time for biomechanical efficiency? Who are the others? Carl?
Carl was number 1. Michael Johnson was also in the top 5. I can’t remember the other ones. These may seem like divergent techniques but the model is made specific to an individual by taking in to account their specific anthropometry.