4min chapter

The Strength Running Podcast cover image

227. Elite Ultrarunner Geoff Burns, PhD on the Science of Super Shoes

The Strength Running Podcast

CHAPTER

Is There a Difference Between Rubber and Rubber in Running Shoes?

If you could see lines in the foam where they have been compressed, and those lines aren't going away, then i know that this shoe is reaching the end of its life. But rubber itself has incredible resiliency, m so rubber would be on the order of a, you know, might be in that 80 85 % return a. It's just very stiff, so the compliance wouldn't be as good a, and it's super dense, so it's going to be heavy. I will say it to your last point, though, is the creasef those lines on the shoes, that is a red herring. A like you have very distinct, squished, comp

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