Nathan and Matt are joined by a very special guest, Dr. Karin Sibernagel, Professor at University of Delaware, to discuss the latest research about tendon anatomy, injury, and rehabilitation. Karin shares her extensive experience, both scientific and practical as a clinician, about everything tendon, especially the Achilles. They dive into the specific anatomy of tendons, why they so often get injured, and what you can do to rehabilitate on your own. Get your DOR Merch: https://doctors-of-running.myspreadshop.com/ Get 20% off your first order from Skratch with code: DOCTORSOFRUNNING! https://www.skratchlabs.com Chapters 0:00 - Intro 2:32 - Karin's background & research 6:30 - An overview of the anatomy of tendons 10:40 - How the muscle, bone, & tendon work together when in movement 14:18 - How to analyze how ready the calf complex is for running 21:18 - They physiology of tendon pain 24:46 - Risk factors for tendon injuries 27:24 - Rehabbing tendon pain 31:08 - Why heavy loading rebuilds tendons 36:38 - Timelines for tendon healing 38:32 - The results of Karin's latest research 48:52 - How useful is shockwave therapy? 54:24 - The role of shoes in achilles tendon pain 59:28 - The effect of consistent super shoe use on tendon health 1:08:54 - Wrap-up