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You are in luck as the Supporters Club embargo has ended! In this exclusive 1-on-1 interview, LetsRun.com co-founder Robert Johnson sits down with Dr. Marius Bakken—13:06 5000m runner, two-time Norwegian Olympian, medical doctor, and the true mastermind behind the double threshold "Norwegian Method" training system used by Jakob Ingebrigtsen and elites worldwide. Bakken breaks down the physiological logic behind double threshold, why the muscular system (not the heart or lungs) is the true limiting factor for distance runners, how to properly use lactate meters, super shoe technology, and why easy days MUST stay easy. If you liked interview, then you need to read the article we wrote as he answered some additional questions via email after we recorded. 📖 READ THE FULL ARTICLE & EMAIL Q&A: 👉 https://www.letsrun.com/?p=327012 📚 GET MARIUS BAKKEN'S NEW BOOK ("The Norwegian Method Applied"): 👉 https://lasso.to/3choBS6Q1Y -------------------------------------------------- ⏱️ TIMESTAMPS: 0:00 - Introduction & The Launch of LetsRun Training Talk Live 1:58 - Sitting in the Call Room: The Quest to Catch African Distance Runners 5:30 - How Marius Bakken’s Winter Base Model Inspired the Ingebrigtsens 7:08 - Bridging Joe Newton’s Mileage with Peter Coe’s Interval Precision 9:08 - Discovering How Kenyans Naturally Train at Threshold Effort 11:02 - The Science & Logic Behind Double Threshold Workouts 12:48 - Re-Framing Double Threshold: "One Long Session with a Long Break" 14:08 - The TRUE Limiter in Distance Running: Muscular System vs. Heart/Lungs 15:28 - Why Easy Days MUST Stay Easy to Protect Muscle Elasticity 16:28 - The Sample Training Week: Balancing Threshold Days and the "X Factor" Workout 17:48 - How Less is More: Maximizing Training Load at the Lowest Muscular Cost 20:10 - Recovery Windows: Controlling the Muscular Adaptation Phase 21:48 - How Beginners & Recreational Runners Can Safely Build Volume 23:59 - What to Do If You Miss a Threshold Workout in Your Schedule 25:18 - Bridging the Gap: Why Western Distance Runners Have Caught Up 27:10 - Marius Bakken's Historic 2002 LetsRun Forum Thread ("Kenya vs. USA") 29:41 - Controversial Altitude Training Experiments in Kenya & Bolivia 31:58 - Did Kenyans Intuitively Train Sub-Threshold Better Than Westerners? 34:46 - Why Marius Chooses Medical Practice Over Full-Time Coaching 36:11 - Will Continuous Lactate Monitors Make Distance Running "Too Perfect"? 37:32 - High School Days at York High School & Transitioning to High Volume 38:59 - The Craziest Training Experiments: 5,000m Altitude & Ketosis Weeks 41:00 - Why Cross-Training (Cycling/Swimming) Doesn't Replace Specific Running Movement 44:40 - Adapting Double Threshold & Intensity Control for High School Athletes 47:08 - Why Every Serious Runner Should Try a Lactate Monitor ($300 Shoe vs $300 Meter) 50:50 - Marius Bakken’s Current Fitness & Weekly Training Routine at Age 48 52:44 - The Future of Continuous Lactate & Gate Monitors 53:39 - Is Double Threshold Ideal for the Western Coaching Mindset? 56:40 - Why a Gap Still Exists Between Westerners & Africans in the Marathon and Cross Country 58:10 - Super Shoes: Injury Reduction, Ankle Stiffness, & Track Depth 1:01:35 - Could Bob Kennedy or Seb Coe Have Run Faster on the Norwegian Method? 1:03:27 - Zatopek’s Early double-session Repeats vs Modern Double Threshold 1:05:07 - Muscle Biopsies & Determining Athlete Event Specialization 1:06:01 - Can Jakob Ingebrigtsen Come Back Stronger From His Injuries? 1:07:38 - Working With Karsten Warholm’s Coach, Leif Olav Alnes 1:09:47 - Did Bakken See Any Doping While Training in Kenya (2000–2002)? 1:10:52 - Closing Thoughts & Upcoming Guest Coaching Appearance -------------------------------------------------- Subscribe to LetsRun.com on YouTube for more elite track & field and distance running content! #MariusBakken #NorwegianMethod #DoubleThreshold #Running #JakobIngebrigtsen #LetsRun LetsRun.com: the home of professional running. 🔥 Support independent journalism • Score a free t-shirt by joining our Supporters Club: https://www.letsrun.com/subscribe Let’s stay connected: ▶️ YouTube (Subscribe to our channel): https://www.youtube.com/@letsrunfast?sub_confirmation=1 🏠 Homepage: https://www.letsrun.com 🗣 Forum: https://www.letsrun.com/forum 💛 Supporters Club: https://www.letsrun.com/subscribe ▶️ YouTube: https://www.youtube.com/@letsrunfast?sub_confirmation=1 🐦 Twitter: https://twitter.com/letsrundotcom 📸 Instagram: https://www.instagram.com/letsrundotcom39:["$","div",null,{"className":"mt-6 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Double Threshold Masterclass with Marius Bakken | Full Interview