Metabolic Mastery

Ep. 79: Why Your “Bad Knee” May Not Be the Real Problem Nov 10, 2026 51:30 Get A Demo: https://korr.com/contact/video-demo/“I have a bad knee.” “My back has never been the same since the accident.” In this episode of Metabolic Mastery, hosts Dr. Marc Humbert and Dr. Cameron Garber explain why your body doesn’t actually remember that old injury the way your brain does. They cover how tissues heal and adapt, how bracing and avoidance can reset your brain’s sense of “safe,”

Ep 78: Dr. Gains (Michael Kamalu): Why Generic Workouts Fail: The Science of Personalized Training Nov 3, 2026 53:29 Most fitness advice was written for the “average body,” and nobody is average from head to toe. In this episode of Metabolic Mastery, hosts Dr. Marc Humbert and Dr. Cameron Garber sit down with Michael Kamalu, founder of Dr. Gains, to explain why generic workouts fail and what truly personalized training looks like. Michael shares his path from a skinny eighth-grade basketball player with a string

Ep. 77: More Data Isn’t Better: Making Sense of Metabolic Test Results Oct 27, 2026 01:08:15 Get A Demo: https://korr.com/contact/video-demo/Metabolic testing can feel overwhelming, but it starts with just four measurements.In this episode of Metabolic Mastery, hosts Dr. Marc Humbert and Dr. Cameron Garber walk through how the cardio coach turns oxygen, carbon dioxide, flow, and heart rate into a deep physiological picture.They sort that data into tiers of reliability, from directly measu

Ep. 76: Heart Rate Zones Explained: Why Zone 2 Means Different Things to Everyone Oct 20, 2026 01:14:42 Get A Demo: https://korr.com/contact/video-demo/Heart rate zones might be the most misunderstood concept in fitness — and in this episode of Metabolic Mastery, hosts Dr. Marc Humbert and Dr. Cameron Garber take a deep dive into exactly why. From elite Olympic athletes using completely different zone systems to say the same thing, to the century-old misunderstanding behind "anaerobic threshold," th

Ep. 75 - Dr. Craig Broeder: The Metabolic Cart Secrets: Why Most Devices Get It Wrong Oct 13, 2026 01:35:00 Get A Demo: https://korr.com/contact/video-demo/Dr. Craig Broeder has spent 45 years at the top of exercise physiology and metabolic testing, training under legends like Jack Wilmore, David Costill, and George Brooks, running biopsy-heavy research trials, and leading elite performance projects for Red Bull's world-class athletes.In this episode of Metabolic Mastery, hosts Dr. Marc Humbert and Dr.

Ep. 74 - Daniel Crumback: The Zoning Mistake: Why Your Heart Rate Zones May Be Wrong Oct 6, 2026 53:47 Get Daniel's PTAP Course: https://strategichealthperformance.inspire360.com/p/ptap-foundationsGet A Demo: https://korr.com/contact/video-demo/Most people buying a metabolic analyzer have no idea how much data they're leaving on the table. In this episode of Metabolic Mastery, hosts Dr. Marc Humbert and Dr. Cameron Garber sit down with Daniel Crumback, KORR's Director of International Sales and a c

Ep. 73-Dr.Thomas George: The Doctor Who Lost 120 Pounds:Inside the Science of Adaptive Thermogenesis Sep 29, 2026 01:12:38 Get A Demo: https://korr.com/contact/video-demo/Dr. Thomas George didn't set out to become an obesity medicine specialist — a traumatic brain injury and a 120-pound weight gain got him there. In this episode of Metabolic Mastery, Dr. Mark Humbert and Dr. Cameron Garber sit down with Dr. George, founder of Wellspring Weight and Wellness, to unpack the science and story behind sustainable weight man

Ep. 72 - How to Warm Up Clients for Accurate VO2 Max & Metabolic Testing Sep 22, 2026 50:08 Get A Demo: https://korr.com/contact/video-demo/Should every client do a warm-up before a VO2 max test? In this episode of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Garber tackle a question that's surprisingly underexplored in the exercise science literature: how to properly warm up a client before metabolic testing.They break down the three main purposes of a warm-up — transition, famil

Ep. 71 - Jody Nelson: Why "Healthy" Habits Aren't Working: A Postpartum VO2 Max Case Study Sep 15, 2026 49:20 Get A Demo: https://korr.com/contact/video-demo/On this episode of Metabolic Mastery, hosts Dr. Marc Humbert and Dr. Cameron Garber are joined by Jody Nelson — KORR's resident metabolic testing expert with a decade of experience and a degree in exercise science — to break down a real client case study.The client: an otherwise fit woman, 18 months postpartum, doing everything "right" — solid nutrit

Ep. 70 - Part 2: How to Design the Perfect HIIT Workout (Using Real VO2 Max Data) Sep 8, 2026 59:58 Get A Demo: https://korr.com/contact/video-demo/In part two of this two-part series, Metabolic Mastery hosts Dr. Marc Humbert and Dr. Cameron Garber shift gears from low intensity training to high intensity — breaking down exactly what HIIT does physiologically, why it works, and how to design intervals that actually match your goals.They start by revisiting the "three zone" model (comfortable, co

Ep. 70 - Part 1: The Best Workout Doesn’t Exist Here’s What Works Instead Sep 1, 2026 54:45 Get A Demo:https://korr.com/contact/video-demo/Is Zone 2 training the answer or should you spend your limited workout time doing high-intensity intervals? The research can make almost any popular workout sound like the best option, but that advice often overlooks the most important variable: the individual doing the training.In this episode of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Ga

Ep. 69 - Rethinking Calories & Metabolism with Dr. Carol Ireton Jones Aug 25, 2026 01:26:18 Get A Demo: https://korr.com/contact/video-demo/The conversation begins with an introduction and background, followed by a discussion of Carol Ireton-Jones's career journey and development. The conversation then delves into research and mentorship, followed by a focus on nutrition and dietary practices. Finally, the discussion explores the concept of food as fuel and satisfaction. The conversation

Ep. 68 - Muscle Fiber Types & Training: How to Trigger the Right Adaptations for Your Goals Aug 18, 2026 47:55 Get A Demo: https://korr.com/contact/video-demo/Ever wonder what's actually changing in your body when VO2 max stays flat but your performance improves? In this episode, we break down the hidden adaptations happening at the biochemical, cellular, and tissue levels—and why patience with your training matters more than you think.We dive deep into energy systems (phosphocreatine, glycolytic, and oxid

Ep. 67 - The 6 Pillars of Health: Reverse Aging Without Extreme Exercise Aug 11, 2026 56:48 Get A Demo: https://korr.com/contact/video-demo/Is maintenance really possible, or is it a lie? In this episode, we debunk the myth that doing the same fitness routine forever keeps you healthy. Discover why progressive overload matters more than you think, and how the SAID principle (specific adaptation to imposed demands) explains why your body adapts—or declines—based on the demands you place o

Ep. 66 - VO2 Max vs VLAMax: The Missing Piece in Your Training Program with Sebastian Weber Aug 4, 2026 57:00 Learn More From Sebastian: inscyd.comGet A Demo: https://korr.com/contact/video-demo/Join hosts Dr. Marc Humbert and Dr. Cameron Garber as we explore advanced metabolic testing, energy systems training, and performance optimization with industry-leading experts.In this episode, we dive deep into energy metabolism with Sebastian Weber, founder of Inside and renowned sports scientist. Discover why y

Ep. 65 - Is VO2 Max Testing Just a Fitness Fad? (The Truth) Jul 28, 2026 01:06:03 Get A Demo: https://korr.com/contact/video-demo/Is VO2 max testing the real deal, or is it just another fitness fad riding a social media wave? In this episode of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Garber pull from their "Fitness Fad Decoder" framework 10 practical questions anyone can use to separate real, sustainable science from hype and apply them directly to VO2 max testing,

Ep. 64 - The VO2 Revolution in Performance & Longevity with Stephen Olson of Benchmark Body Metrics Jul 21, 2026 01:00:29 Follow Stephen:Instagram: _stephenolsonGet A Demo: https://korr.com/contact/video-demo/In this episode, Cameron Garber dives deep into metabolic testing with Stephen Olson, founder of Benchmark Body Metrics. Discover why your smartwatch's VO2 estimate might be 20% off, how to build an aerobic base that transforms endurance performance, and the often-overlooked breathing patterns that limit fitness

Ep. 63 - Why Your Smartwatch's VO2 Max Is Wrong With Daniel Crumback Jul 14, 2026 01:10:19 Get A Demo: https://korr.com/contact/video-demo/Wearables and influencers have made VO2 max a household term but most of what's being said about it is misleading, oversimplified, or flat-out wrong. In this episode, Dr. Marc Humbert sits down with Daniel Crumback Director of International Sales at KORR, certified exercise physiologist, chartered physiotherapist, and strength and conditioning specia

Ep. 62 - How We Helped a Injured Runner Lose 20 Lbs Without a Weight Loss Program (Real Case Study) Jul 7, 2026 01:11:05 In this episode of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Garber walk through a real-world case study of a female runner in her 40s one who was stuck in a cycle of injuries, told to stop running, and struggling to lose weight despite years of effort. Using resting metabolic rate (RMR) testing, VO2 max data, and evidence-based exercise prescription, they break down exactly how they des

Ep. 61 - Why Research Alone Can't Save You: Applying Science to YOUR Body (N of 1 Explained) Jun 30, 2026 01:08:34 Get A Demo: https://korr.com/contact/video-demo/ In this episode of Metabolic Mastery, hosts Dr. Marc Humbert and Dr. Cameron Garber tackle one of the most misunderstood challenges in health and fitness: how to take population-based research and actually apply it to the individual in front of you — the "N of 1." With an overwhelming flood of new studies published daily, it's easy to either over-re

Ep. 60 - What Your Breath Actually Tells Us About Your Body (And Why It Matters) Jun 23, 2026 01:08:45 Get A Demo: https://korr.com/contact/video-demo/ Have you ever wondered how a device that just measures your breath can tell you how many calories you're burning, what fuel your body is using, and how well your heart, lungs, and muscles are working together? In this episode of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Garber break down the fascinating science behind indirect calorimetry

Ep. 59 - Fasted Cardio, Cortisol & Fat Burning — What the Science Actually Says Jun 16, 2026 47:07 Get A Demo: https://korr.com/contact/video-demo/ Are you optimizing your workouts based on short-term signals that may not actually lead to long-term results? In this episode of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Garber break down one of the most misunderstood concepts in fitness — the difference between what happens in your body during a single workout versus what actually dri

Ep. 58 - Debunking the Metabolism Myth: What's Actually Happening to Your Body After 40 Jun 9, 2026 55:22 Get A Demo: https://korr.com/contact/video-demo/ Think your metabolism fell off a cliff the moment you hit your 40s? Think again. In this episode of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Garber break down the real science behind aging and metabolism — and why most of what you've been told is a myth. You Will Learn: Why aging isn't the real culprit behind weight gain, injury, and

Ep. 57 - Pro Tips That Will Transform Your VO2 & RMR Testing Results Jun 2, 2026 01:04:59 Get A Demo: https://korr.com/contact/video-demo/ In this episode of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Garber pull back the curtain on the practical tips, shortcuts, and workflows that separate good metabolic testing data from great data. Whether you're just getting started with VO2 max and RMR testing or you've been doing it for years, this episode is packed with actionable kn

Ep. 56 - Why Everything You've Been Told About Cardio Is Wrong (According to Science) May 26, 2026 01:04:46 Get A Demo: https://korr.com/contact/video-demo/ Is cardio bad for your knees? Does running destroy your joints? Will endurance training make you weak? In this episode of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Garber tackle the most common endurance training myths circulating on social media and break down what the science actually says. They explore why cardio gets such a bad rap,

Ep. 55 - The RMR Test Mistakes Everyone Makes (And How Bad Breathing Ruins Your Metabolic Data) May 19, 2026 01:08:23 Get A Demo: https://korr.com/contact/video-demo/ In this episode of Metabolic Mastery, hosts Dr. Marc Humbert and Cameron Garber sit down with Daniel Crumback — KORR's Director of International Sales, certified exercise physiologist, chartered physiotherapist, and certified strength and conditioning coach — for a deep dive into one of the most overlooked data sets in metabolic testing: respirator

Ep. 54 - Choosing Correct Protocols for Bikes, Treadmills, and Other Equipment May 12, 2026 01:15:28 Get A The Protocol Guide: https://korr.com/go/metabolic-testing-protocol-guide/ Ever wonder why a client's VO2 max result seems "off" — or why two tests on the same person produce wildly different numbers? The answer almost always comes down to protocol design. In this episode of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Garber walk through a practical, step-by-step algorithm for choosi

Ep. 53 - Submax vs. Max VO2 Testing: How to Design the Right Protocol for Every Client May 5, 2026 39:48 Get A Demo: https://korr.com/contact/video-demo/ In this episode of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Garber break down one of the most commonly misunderstood areas of exercise physiology testing: how to properly design submaximal and maximal VO2 tests. Whether you're working with elite athletes, deconditioned beginners, firefighters, or everyone in between, the best test isn't

Ep. 52 - Starting Where You Are: Exercise Programming for Obese and Deconditioned Patients Apr 28, 2026 01:20:04 Get A Demo: https://korr.com/contact/video-demo/ Most patients know they should exercise — but knowing and doing are two very different things. In this episode of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Garber tackle one of the most overlooked areas in obesity medicine: exercise prescription for patients who are just starting their fitness journey. Drawing on insights from the OMA (O

Ep. 51 - Beyond Willpower: The Real Science Behind Obesity and Lasting Weight Loss Apr 21, 2026 52:13 Get A Demo: https://korr.com/contact/video-demo/ Obesity is one of the most misunderstood public health crises of our time — and for decades, we've been getting the conversation wrong. In this episode of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Garber take a deep, honest look at why blaming individuals for obesity ignores the biological, social, and environmental forces stacked against

Ep. 50 - Ask Us Anything VO2 Max & RMR Extravaganza Apr 14, 2026 01:11:41 Get A Demo: https://korr.com/contact/video-demo/ If your VO2 max or RMR testing isn't dialed in, the data is useless. In this episode of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Garber break down the real reason most metabolic tests fail—and it's not the device. It's the protocol. From fasting mistakes and caffeine interference to poor test setup and bad coaching during the test, small

Ep. 49 - Your Heart Rate Zones Are Probably Wrong (Here's Why) Apr 7, 2026 49:35 Get A Demo: https://korr.com/contact/video-demo/ Most people think there's a "best" way to test VO2 max—but that question is completely wrong. In this episode of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Garber break down the real answer behind bike vs treadmill testing, why results can vary drastically, and how poor testing choices can completely mislead your training. From athletes to

Ep. 48 - Can You Lose Fat and Build Muscle at the Same Time? Mar 31, 2026 56:49 Get A Demo: https://korr.com/contact/video-demo/ In this episode of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Garber break down the science of body composition and body recomposition—including why so many people want to lose fat while preserving or even building muscle, and why that process is often harder than it sounds. They explain how calorie deficits affect lean mass, why protein in

Ep. 47 - How to Build a Successful Metabolic Testing Business Mar 24, 2026 50:02 Get A Demo: https://korr.com/contact/video-demo/ In this episode of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Garber break down the business side of metabolic testing and why great data alone is not enough to create a successful health, fitness, or wellness business. They explore how providers can use VO2 max testing, resting metabolic rate testing, and broader metabolic assessments not

Ep. 46 - How Modern VO2 Testing Helps Clinics, Gyms, and Coaches Mar 17, 2026 01:04:25 Get A Demo: https://korr.com/contact/video-demo/ In this episode of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Garber break down how VO2 max testing has evolved from a bulky, university-lab-only tool into a practical, clinic- and gym-ready system that can transform both client outcomes and the way health and fitness professionals operate. They explain why VO2 max is one of the strongest p

Ep. 45 - Stop Guessing Your Workouts: The Science of Precision Exercise Prescription Mar 10, 2026 01:12:41 Get A Demo: https://korr.com/contact/video-demo/ In this episode of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Garber break down the growing push for precision exercise prescription and why standard fitness recommendations often miss the mark for the individual. Using a recent consensus statement from leading exercise science organizations as the foundation, they explore why the industry

Ep. 44 - Exercise Calories Explained: RMR, METs, and the Real Numbers Mar 3, 2026 39:50 Get A Demo: https://korr.com/contact/video-demo/ How many calories did you really burn during your workout? Your watch says 600. The treadmill says 450. Your app says 700. Who's right? In this episode of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Garber break down how exercise calories are estimated, why most methods are flawed, and how metabolic testing using indirect calorimetry changes

Ep. 43 - The Metabolic Glossary: VO2, RER & Thresholds Explained Simply Feb 24, 2026 01:10:09 Get A Demo: https://korr.com/contact/video-demo/ If you've ever looked at a metabolic test report and thought, "I should know what this means… but I don't," this episode is for you. In this Metabolic Mastery episode, Dr. Marc Humbert and Dr. Cameron Garber break down the terminology behind metabolic testing — without hiding behind jargon. From VO2 and VCO2 to RER, ventilatory thresholds, METs, oxy

Ep. 42 - From "Always 6th Place" to the Podium: Fixing Breathing Limits With Daniel Crumback Feb 17, 2026 01:12:03 Get A Demo: https://korr.com/contact/video-demo/ Note: Part of this episode uses charts. Check out the video version to see them in action. Respiratory limitations are one of the most overlooked performance bottlenecks in exercise physiology, and they can quietly cap results even in highly trained athletes. In this episode, Daniel Crumback breaks down how to identify respiratory limitations using

Ep. 41 - Stop Selling Features Start Selling Outcomes With Greg Marshall Feb 10, 2026 01:24:46 Get A Demo: https://korr.com/contact/video-demo/ In this episode of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Garber sit down with Greg Marshall, founder of Fitcher Marketing, to talk about the part of health business that most clinicians avoid: selling. Greg breaks down why "getting more leads" is the wrong target (sales are the target), why great selling is really leadership + empathy,

Ep. 40 - 7 VO2 Max MythConceptions: What Most People Get Wrong Feb 3, 2026 01:14:19 Get A Demo: https://korr.com/contact/video-demo/ VO2 max is having a moment—and with popularity comes misinformation. In this episode of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Garber break down the most common myths and misconceptions around VO2 max, why "more breath" usually isn't the problem, and how performance depends on far more than one number. They cover what's actually trainab

Ep. 39 - First, Do No Harm: How Healthcare Language Shapes Pain, Fear, and Outcomes Jan 27, 2026 45:55 Get A Demo: https://korr.com/contact/video-demo/ "First, do no harm" is supposed to be the starting point for every health professional—but in modern healthcare and fitness, we can unintentionally do harm through fear-based language, incomplete informed consent, and "majoring in the minors" while ignoring the behaviors that move the needle most. In this episode, Dr. Marc Humbert and Dr. Cameron Ga

Ep. 38 - Calories In, Calories Out: True… But Not That Simple (The Real Physiology of Fat Loss) Jan 20, 2026 01:15:13 Get A Demo: https://korr.com/contact/video-demo/ "Calories in, calories out" is a real principle—but it's not a helpful plan unless you understand what drives each side of the equation. In this episode, Dr. Marc Humbert and Dr. Cameron Garber break down the physiology behind energy balance, why scale weight can be wildly misleading, and why people feel stuck even when they're "doing everything ri

Ep. 37 - From Pro Wrestling to Longevity Medicine: Dr. Asa Andrew on VO₂ Max, Performance, and Aging Well Jan 13, 2026 34:04 Follow Dr. Asa Andrews: YouTube: https://www.youtube.com/@DrAsa Instagram: https://www.instagram.com/drasa/ Facebook: https://www.facebook.com/DrAsaAndrew/ TikTok: https://www.tiktok.com/@drasa Website: https://www.drasa.com/ In this episode of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Garber sit down with Dr. Asa Andrew, physician, chiropractor, functional medicine expert, and host of

Ep. 36 - Biomarkers 101: Turning Health Data Into Better Decisions Jan 6, 2026 42:06 Get A Demo: https://korr.com/contact/video-demo/ Biomarkers are everywhere in health, fitness, and wearable technology—but more data doesn't always mean better insight. In this episode of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Garber break down what biomarkers actually are, why not all biomarkers are created equal, and how misleading metrics can obscure meaningful health decisions. Th

Ep. 35 - Why New Year Fitness Goals Fail and How Metabolic Testing Fixes It Dec 30, 2025 01:06:20 Get A Demo: https://korr.com/contact/video-demo/ In this episode of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Garber break down why metabolic testing is one of the most powerful tools for improving health, fitness, and longevity—regardless of your current fitness level. From beginners restarting after years away from exercise to advanced athletes stuck in cycles of injury or plateau, thi

Ep. 34 - Heart Rate Recovery, METs, and Efficiency: The Metrics That Predict Performance Dec 23, 2025 01:04:01 Get A Demo: https://korr.com/contact/video-demo/ In this episode of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Garber are joined by Daniel Crumback (Director of International Sales at Core Medical Technologies, and Director of Strategic Health & Performance) to break down how physiological testing can uncover the real reason someone stalls in fitness, performance, and health. Most peo

Ep. 33 - Personalizing Training: What a Collegiate Runner's Metabolic Test Revealed Dec 16, 2025 58:40 Get A Demo: https://korr.com/contact/video-demo/ In this episode of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Garber walk through a real-world consultation involving a collegiate runner whose metabolic test results didn't match expectations. What starts as a simple test review turns into a deep exploration of training errors, load vs. capacity, the dangers of chronic overload, and how in

Ep. 32 - Test, Don't Guess: Inside Metabolic Efficiency Training with Bob Seebohar Dec 9, 2025 01:18:32 Get the book: https://shopenrgperformance.com/hard-copy-books-1 https://shopenrgperformance.com/ebooks And Learn More About Bob: Website: https://www.enrgperformance.com/metabolic-efficiency-training YouTube: https://www.youtube.com/@Enrgperformance In this episode of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Garber sit down with Bob Seebohar – registered dietitian, exercise physiolog

Ep. 31 - Client Success With Diane Owen: From "Not Built to Run" to 1,200 Miles a Year Dec 2, 2025 01:07:02 Get A Demo: https://korr.com/contact/video-demo/ In this episode of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Garber sit down with Diane Owen – a photographer, mom of three, and graduate of the Becoming Body Smart program – to unpack what true, long-term change looks like from the client's side. Diane shares how she went from an "on again, off again" athlete stuck in a painful injury–we

Ep. 30 - Holiday Metabolism Survival Guide: Keep the Weight Off Without Losing the Joy Nov 25, 2025 01:08:45 Share KORR's Tips For The Holidays With Your Clients: https://korr.com/go/download-korrs-metabolic-holiday-tips/ The holidays are a delicious time of year… and a dangerous time for your metabolism. In this episode of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Garber break down why most people only gain 1–2 pounds over the holidays—yet end up 30–40 pounds heavier a couple of decades later

Ep. 29 - DEXA Scans, GLP-1s, and Longevity With Special Guest Tony Orlando Nov 18, 2025 44:08 In this episode of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Garber sit down with Tony Orlando, founder of Dexa Plus and DexaScan.com, to unpack why DEXA scans are becoming one of the top longevity markers. They explore how DEXA goes far beyond a simple "body fat test," revealing bone density, muscle distribution, and visceral fat levels that directly impact long-term health, performance

Ep. 28 - Aerobic vs Anaerobic Power: How Your Body Really Makes Energy Nov 11, 2025 01:06:53 Get A Demo: https://korr.com/contact/video-demo/ Aerobic vs anaerobic power isn't just sports-science jargon—it's the operating manual for your training and daily life. Dr. Marc Humbert and Dr. Cameron Garber break down how your body produces ATP through the ATP-PC, glycolytic, and oxidative systems, why "power" (max rate) and "capacity" (how long) are different, and how CardioCoach metabolic test

Ep. 27 - Client Success With Shannon Garber: From Test to Triumph Nov 4, 2025 59:30 Get A Demo: https://korr.com/contact/video-demo/ After four kids in six years and a stall-out on the scale, Shannon swapped punishment-style workouts for CardioCoach-guided heart-rate training. The result? Fewer injuries, steady weight loss, and marathon negative splits—plus the confidence to pace race day by physiology, not pace charts. Dr. Marc and Dr. Cameron break down her test data (why livin

Ep. 26 - Why Your Wearable Might Be Lying to You: The Truth About Fitness Data Oct 28, 2025 41:59 Get A Demo: https://korr.com/contact/video-demo/ In this episode of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Garber dive deep into the world of wearables—exploring where your fitness tracker shines and where it can seriously mislead you. From heart rate accuracy to calorie burn estimates and VO₂ max predictions, they break down the crucial difference between measured values and calculat

Ep. 25 - Why "Easier" Training Makes You Faster (and Injury-Free) Wtih Chris Navin Oct 21, 2025 01:15:53 Follow Chris Navin: Instagram: https://www.instagram.com/4starendurance Facebook: http://fb.com/metabolicathlete Linkedin: https://www.linkedin.com/company/4starendurance YouTube: https://www.youtube.com/@4starendurance www.4starendurance.com/coach-chris Coach Chris Navin—triathlon & marathon coach, 400+ races, 50+ Iron-distance finishes, Team USA qualifier 25+ times—joins Dr. Marc Humbert and

Ep. 24 - Redefining Military Fitness Standards With VO2 Max With Mike "BT" Blout Oct 14, 2025 59:33 Get A Demo Of KORR: https://korr.com/contact/video-demo/ In this episode of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Garber sit down with retired U.S. Air Force Combat Controller Mike "BT" Blout, a seasoned special operations veteran, to explore how the military is rethinking fitness standards for the modern warfighter. Together, they discuss the evolution from traditional "push-ups, si

Ep. 23 - How to Find Your True Zone 2 (and Why Most Apps Get It Wrong) Oct 7, 2025 01:11:39 Schedule A Demo: https://korr.com/contact/video-demo/ "Zone 2" is everywhere—but are we even talking about the same thing? Dr. Marl Humbert and Dr. Cameron Garber sit down with performance physiologist Daniel Crumback to cut through the noise and reframe training zones around what actually matters: ATP production and substrate use. Instead of leaning on arbitrary percentages of HRmax or VO₂max—or

Ep. 22 - Why CO2 Matters? Fats Vs Carbs Sep 30, 2025 57:47 https://korr.com/products/vo2-max-testing-system/ In this episode of Metabolic Mastery from KORR Medical Technologies, Dr. Marc Humbert and Dr. Cameron Garber dig into the other side of metabolism: carbon dioxide. Everyone talks about oxygen uptake, but CO₂ is the missing puzzle piece that reveals what fuel you're burning (fat vs. carbs), how efficiently your systems are working, and why your tra

Ep. 21 - Client Guidelines for Effective Fat Burn Sep 23, 2025 26:47 Download KORR's Effective Fat Burn Data From CardioCoach®: https://korr.com/go/download-korrs-effective-fat-burn-graphs/ In this episode of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Garber break down one of the most powerful tools in metabolic testing—the Effective Fat Burn Graph. Building on last week's discussion of the KORR dashboard, the hosts dive deep into how this graph reveals yo

Ep. 20 - Inside the "Secret Lab": Richard Diaz on VO₂, Hybrid Fitness, and Winning the Hard Way Sep 16, 2025 01:17:47 https://korr.com/products/vo2-max-testing-system/ Hybrid fitness meets metabolic science. In this episode of Metabolic Mastery (by KORR Medical Technologies), Dr. Marc Humbert and Dr. Cameron Garber sit down with legendary performance coach Richard Diaz—the man behind "the Secret Lab," world champions in Spartan and HYROX, and a decades-long career testing everyone from triathletes to NHL players.

Ep. 19 - Thresholds, Zones, and Recovery: The Metrics That Matter Sep 9, 2025 49:31 https://korr.com/products/vo2-max-testing-system/ VO₂ max gets all the headlines, but it's only one piece of the story. In this episode of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Garber break down the full VO₂ results dashboard: VO₂ max, aerobic and anaerobic thresholds (VT1/VT2), heart-rate zones, heart-rate recovery, and how these metrics connect to cardiometabolic health, mortality

Ep. 18 - Periodization Made Simple: Training for Every Season of Life Sep 2, 2025 01:15:53 https://korr.com/products/vo2-max-testing-system/ Periodization doesn't have to be complicated. In this episode of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Garber break down the essentials of periodization, how to structure your training across the seasons of life and year without getting lost in the jargon. They explore how to zoom out for long-term health goals (like still being acti

Ep. 17 - Training for Health & Longevity: The Process Over the Goal Aug 26, 2025 53:57 https://korr.com/products/vo2-max-testing-system/ In this episode of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Garber take a deep dive into how to train for a long, healthy, and active life. Instead of obsessing over quick results or "goal metrics," they explain why focusing on sustainable "process metrics" creates better outcomes over decades—not just weeks. You'll learn how to set up y

Ep. 16 - How VO2 Max Reveals Your Fitness Story Aug 19, 2025 01:10:13 https://korr.com/products/vo2-max-testing-system/ In this episode of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Garber reveal how a VO₂ test can tell the full story of your fitness — past, present, and future. While most people think VO₂ max is the whole picture, they explain how measuring both oxygen consumption and carbon dioxide production unlocks deeper insights into fat-burning effic

Ep. 15 - How to Train Smarter Using Metabolic and VO2 Testing (Not Just Harder) Aug 12, 2025 01:00:24 https://korr.com/ VO₂ max gets all the glory—but is it really the key to performance? In this data-packed episode of Metabolic Mastery, Dr. Mark Humbert and Dr. Cameron Garber go deep on why VO₂ max is only one piece of the endurance puzzle. From real-world athlete case studies to training strategies that go far beyond heart rate zones, they unpack the science behind metabolic testing and how to

Ep. 14 - The Science of Winning Gold Medals: Building Elite Triathletes with Parker Spencer Aug 5, 2025 52:33 https://korr.com/ In this episode of Metabolic Mastery, we sit down with Parker Spencer, head coach of USA Triathlon's Olympic Development Team and 2022 Coach of the Year. With over 100 elite podiums under his belt, Parker shares how he blends cutting-edge exercise science, VO₂ and lactate testing, and personalized athlete development to build world-class competitors from the ground up. From team

Ep. 13 - Longevity & RMR: The Truth About Metabolism, Muscle & Longevity Jul 29, 2025 44:32 What if your metabolism isn't actually slowing down with age? In this episode of Metabolic Mastery from KORR Medical Technologies, Dr. Marc Humbert and Dr. Cameron Garber unpack the misunderstood science of resting metabolic rate (RMR) and what it means for your long-term health. From why your fitness tracker might be lying to you, to how GLP-1s and muscle loss impact longevity, they explain why m

Ep. 12 - Q&A With Special Guest Sean Kinane Jul 22, 2025 01:19:29 What does it take to run 25,000 metabolic tests and build one of the most trusted testing services in Europe? In this episode of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Garber sit down with Sean Kinane, founder of Health Matters in Dublin, Ireland. From humble beginnings as a personal trainer in Australia to testing Olympic athletes, tech executives, and clinical trial participants, Se

Ep. 11 - Longevity & VO₂ Max: Healthspan, Strength, and VO₂ Max – Your Real Aging Toolkit Jul 15, 2025 58:24 Get CardioCoach: https://korr.com/products/vo2-max-testing-system/ In this episode of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Garber dive deep into the science of longevity—what it means, why healthspan matters more than just living longer, and how metrics like VO₂ max and muscular power can help predict and improve your quality of life as you age. They explore the difference between l

Ep. 10 - BMI: Misunderstood, Misused, and Still Useful? Jul 9, 2025 46:23 In this episode of Metabolic Mastery from KORR Medical Technologies, Dr. Marc Humbert and Dr. Cameron Garber dig deep into BMI—Body Mass Index. Often misunderstood and misapplied, BMI remains a widely used health metric. But does it still deserve a place in modern fitness and medicine? The doctors unpack the science behind BMI, its historical roots, and its usefulness (or lack thereof) when applie

Ep. 9 - Load vs. Capacity: The Key to Injury-Free Training and Long-Term Performance Jul 2, 2025 52:59 In this episode of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Garber dive deep into one of the most crucial, and misunderstood,principles in fitness: Load vs. Capacity. Discover how managing total load (training, stress, sleep, nutrition, life events) relative to your body's capacity is the key to avoiding injury, preventing burnout, and optimizing long-term performance. Learn why VO2 max

Ep. 8 - Test What You Intend to Measure - Part 2 Jun 25, 2025 29:57 Get Your Test Protocols Worksheet Here: https://korr.com/go/korrs-testing-protocols-worksheet/ In Part 2 of our "Test What You Intend to Measure" series, Dr. Marc Humbert and Dr. Cameron Garber dive deep into the art and science of building precise metabolic test protocols. Whether you're testing VO2 Max, substrate utilization (Fat Max), fatigue resistance, zone recovery, or designing open-ended d

Ep. 7 - Test What You Intend to Measure - Part 1 Jun 18, 2025 01:00:53 Get Your Test Protocols Worksheet Here: https://korr.com/go/korrs-testing-protocols-worksheet/ In this episode of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Garber break down how to design effective metabolic testing protocols to deliver accurate, actionable data. Whether you're performing resting metabolic rate (RMR) tests, VO2 Max testing, substrate utilization, fatigue resistance asses

Ep. 6 - NEAT Why You Can't Outrun a Bad Diet (and Why That's a Good Thing) Jun 11, 2025 41:46 In this episode of Metabolic Mastery, brought to you by KORR Medical Technologies, Dr. Marc Humbert and Dr. Cameron Garber dive into the truth about exercise, metabolism, and body composition. Picking up from last week's episode on fast vs. slow metabolism, they break down why traditional views on calorie burn are flawed—and why your daily movement (NEAT: Non-Exercise Activity Thermogenesis) may m

Ep. 5 - Fast vs. Slow Metabolisms—What Really Matters? Jun 4, 2025 45:54 In this episode of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Garber break down one of the most common health questions: Do I have a fast or slow metabolism? They debunk popular myths, explain what metabolism truly is, and why it matters far beyond just weight. You'll learn about resting metabolic rate, the role of lifestyle and age, and how metabolic testing can transform the way we appr

Ep. 4 - Q&A with Daniel Crumback of Strategic Health and Performance May 28, 2025 57:08 In this week's episode, Dr. Marc Humbert and Dr. Cameron Garber sit down with Daniel Crumback—Director of Strategic Health and Performance, veteran, physiotherapist, and international exercise physiology consultant. Daniel shares his extraordinary journey from the Canadian military to leading performance testing for elite athletes across the globe. You'll hear: How Daniel transitioned from comma

Ep. 3 - Contrary To Popular Belief #1 - Debunking Fitness and Metabolism Myths May 21, 2025 17:54 In this special segment of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Garber launch "Contrary to Popular Belief," where they challenge common misconceptions about fitness, fat loss, metabolism, and the role of exercise. From clarifying what zone 2 training should feel like, to explaining why exercise isn't the primary key to weight loss, they unpack powerful truths rooted in science and c

Ep. 2 - Why Zone 2 Training Changes Everything May 14, 2025 40:23 In this episode of Metabolic Mastery, Dr. Marc Humber and Dr. Cameron Garber dive deep into the science and strategy behind Zone 2 training — one of the most effective, yet misunderstood, methods for improving metabolism, endurance, fat-burning, and long-term health. They break down: The physiology behind Zone 2 and why it's essential for metabolic flexibility How to identify your true trainin

Ep. 1 - VO2 Values As A Vital Sign May 7, 2025 44:30 Why should oxygen consumption sit beside blood pressure and heart rate on your health checklist? In this kickoff episode of the KORR Medical Technologies Podcast, Dr. Marc Humbert and Dr. Cameron Garber unpack why VO₂ Max—and metabolic testing in general—may be the single most powerful (and overlooked) vital sign for predicting how long and how well you'll live. You'll learn: How measuring the o

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