#251 Mailbag! Can a Foam Cause Pain? The Shelf Life of Shoes? The Science Behind Shoe Rotations?

Join Nathan, David, and Matt as they continue answering you the mailbag questions they started on our 250th episode! They explore how different foam compositions can affect injury pathologies, the science behind shoe rotations, adapting to super shoes, and much more. We love hearing your questions, so email us at doctorsofrunning@gmail.com ! Get your DOR Merch: https://doctors-of-running.myspreadshop.com/ Get 20% off your first order from Skratch with code: DOCTORSOFRUNNING! Stryd’s Race Power Calculator eliminates the uncertainty of race day by analyzing the course, weather, and your personal capability to create a custom power target. This lets you pace with precision—conquering hills, battling headwinds, or enduring heat without overdoing it. With Stryd, you’re strategizing for your best performance. Ready to own race day? Visit ⁦stryd.com⁩ today. Chapters 0:00 - Intro 1:18 - In For Testing 17:54 - Foam composition's effect on injury & pain 23:56 - Shoe shelf life 29:26 - Finding the right shoe for ultramarathons 35:48 - Helping run retail customers understand how to find the right shoe 45:02 - Adapting to super shoes without running in them much 54:23 - The science behind shoe rotations 1:06:56 - Wrap-up