Our teams loves answering your questions, so here we are to dig into the mailbag! Nathan, Andrea, and David team up and talk to talk shoes, training, and injuries. They discuss advice for running with arthritis and neuromas, the best wet-weather shoes, non-plated speed-training shoes, and much more. Want your question on the next mailbag? Email us at doctorsofrunning@gmail.com.

Get your DOR Merch: https://doctors-of-running.myspreadshop.com/

We're thrilled to introduce Rabbit as a presenting partner! You can use code DORJAN10 to get 10% off your entire order of $50.00 or more. Note that the code is limited to one use per customer and can’t combined with other discounts. The code is active from 1st of every month to last day at 11:59PM PST, but don't worry because we'll be bringing you a new code every month. Shop now at https://www.runinrabbit.com/.

Get 20% off your first order from Skratch with code: DOCTORSOFRUNNING! https://www.skratchlabs.com

Chapters

• 0:00 - Intro
• 1:48 - In for Testing: Powered by Skratch Labs
• 16:26 - Advice for running degenerative joint disease and arthritis
• 25:00 - Good shoes for wet/muddy parkruns
• 30:34 - Does toe spring effect hyper extension?
• 40:06 - Brannock size vs. running shoe size
• 44:46 - Non-plated speed shoes
• 49:14 - Advice for children dealing with Sever's Disease
• 54:26 - Shoe options for training with a neuroma
• 1:00:46 - Wrap-up

We're heading into the new year with a new round of Buy or Sell, one of our favorite podcast games. If you don't know the drill, we force ourselves to decide whether we buy or sell an idea, shoe, treatment, etc. Today, Nathan, David, and Matt debate the Saucony Endorphin Azura (Shift 3 replacement??), the venerable ASICS Nimbus, whether runner's high really exists, and much more. Want your idea on the next edition of Buy or Sell? Email us at doctorsofrunning@gmail.com!

We're thrilled to introduce Rabbit as a presenting partner! You can use code DORJAN10 to get 10% off your entire order of $50.00 or more. Note that the code is limited to one use per customer and can’t combined with other discounts. The code is active from 1st of every month to last day at 11:59PM PST, but don't worry because we'll be bringing you a new code every month. Shop now at https://www.runinrabbit.com/.

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
• 4:26 - In for Testing: Powered by Skratch Labs
• 14:20 - Buy/sell: Saucony Endorphin Azura
• 24:34 - The Azura as a Shift 3 replacement
• 29:18 - ASICS Nimbus 28 is better than the 27
• 35:54 - The Saucony Endorphin Pro 5 is a super shoe
• 44:48 - Running a marathon or ultra in 2026
• 53:12 - Running doubles
• 1:01:50 - Runner's high is real
• 1:11:25 - Wrap-up

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