Previous Shoes wrote:
So I'm curious if this study took into account what shoe the runners were switching FROM? Anyone glean that from the article?
If they had taken the results ONLY from people running their previous marathon in a racing style flat, would the results be different?
They have taken data from people switching from all different kind of shoes. But they have done that also for a lot of different shoe types and brands. While the vaporfly 4% showed an average gain of 4%, other typical racing flats have about 2-3%, too. So if you changed from other racing flats to vaporflys the relative effect is maybe reduced to 1% or less.