So basically, the general consensus seems to be that this video sucks and the guy is a fucking moron.

 

Gotcha.

I think he has a reasonable hypothesis.  And his analysis might be fine.  I just wonder if it matters.  How much time did those Kenyans at Boston spend in video analysis of their technique?  Do triathletes who affect a less vertical style improve their performance?

Not a bad idea to suggest that you adjust your racing technique to a more efficient technique for longer slower races, but does it matter?

Years ago I was watching a marathon on TV and there was this guy analyzing everyone, pointing out who had an inefficient up-and-down stride and who had an efficient no-vertical-motion stride.  He was saying that the up-and-down guys were going to wear out sooner.  As I recall, in the end it had no correlation at all on the final results.