That’s an interesting reference. I know Joe Friel has mentioned this on his blog a couple of times (http://www2.trainingbible.com/joesblog/2007/01/cleat-position.html ) I know of couple people (one in particular) that complain that one of their feet quivers when they weigh it in a turn, after a long ride. Presumably due to muscle fatigue and pressure on a nerve. They said when they moved their cleat back as far as possible the problem was less, but still present. This might be an interesting solution to that problem if this changes how shoes are made.acoggan said:"Max Testa (one of the world's top exercise physiologists who at one point was working with 35 of the top 50 UCI ranked cyclists) recently completed a study at his lab on cleat position and efficiency and clearly found (p<.001) that as the cleat moves posteriorly cyclists are more efficient. I am not sure as to the publication date for the study but know that it is pending."