Metabolic Mastery

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: respiratory values. While most practitioners stop at VO2 max or basic metabolic markers, Daniel reveals how tidal volume, breathing frequency, and lung function norms can expose performance limiters that no one else is talking about. From RMR test quality issues caused by over-breathing, to identifying whether an athlete has a respiratory capacity or capability problem, this episode is packed with clinical insight and real-world testing examples. You Will Learn: Why most RMR tests produce invalid data — and how breathing pattern is usually the culprit What normal tidal volume and respiratory frequency look like at rest and across all training zones How to use the GLI (Global Lung Function Initiative) calculator to establish personalized respiratory norms How to calculate peak tidal volume as a percentage of predicted FEV1 to identify respiratory limitation Why VE (minute ventilation) masks serious breathing problems that individual respiratory values reveal How hyperventilation impairs oxygen delivery, cardiovascular output, core stability, and decision-making The difference between a respiratory capacity limitation vs. a capability limitation — and why the training response is completely different How recovery data after an exercise test reveals critical information about breathing patterns Why you should never remove the mask at the end of a test — and what that post-effort data tells you Practical strategies for improving test quality and helping clients breathe normally during RMR testing  Follow KORR: Instagram: https://www.instagram.com/korrmedical/  Facebook: https://www.facebook.com/korrmedical/  LinkedIn: https://www.linkedin.com/company/korrmedical https://korr.com/  Listen to the Metabolic Mastery Podcast: Apple Podcast: https://podcasts.apple.com/us/podcast/metabolic-mastery/id1812972674  Spotify: https://open.spotify.com/show/2sgLMFv1Z8DwEz87yUpapI?si=29a177a6c6ca4ed4  YouTube: https://www.youtube.com/@korrmed/podcasts  YouTube Music: https://music.youtube.com/playlist?list=PLVCRWXBDdFo_S0OeaAsPv8xTnfajTLc75&si=d4wVUA0jqajkbukB  Amazon: https://music.amazon.com/podcasts/d76834b7-c11a-485f-8010-32b490d49e57/metabolic-mastery  

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 choosing the right metabolic testing protocol for every type of client — from the completely deconditioned to the elite competitor. You Will Learn: The single most important principle in metabolic testing: how to "test what you intend to measure" How to assess a client's fitness history and goals to determine the right testing mode (cycling, treadmill, rowing, hiking, and more) Why protocol choice directly impacts the accuracy of VO2 max, heart rate zones, and substrate utilization data A watt-by-watt breakdown of cycling protocol progressions (10W to 30W increments) matched to fitness level and gender Treadmill protocol design for walkers, joggers, runners, ruckers, and elite athletes — including how to handle the "awkward zone" between walking and jogging When and how to run a submaximal test safely, and how the CardioCoach extrapolates VO2 max from incomplete efforts How to adjust protocols on the fly without compromising your data Why standardizing your decision-making process (not your protocol) is the key to consistent, comparable results across retests Equipment considerations — why walking pads fall short and what treadmill specs actually matter How strength training history informs both protocol design and exercise prescription Whether you're just starting out with metabolic testing or looking to tighten up your workflow, this episode gives you a repeatable framework you can apply immediately with any client. Follow KORR: Instagram: https://www.instagram.com/korrmedical/  Facebook: https://www.facebook.com/korrmedical/  LinkedIn: https://www.linkedin.com/company/korrmedical https://korr.com/  Listen to the Metabolic Mastery Podcast: Apple Podcast: https://podcasts.apple.com/us/podcast/metabolic-mastery/id1812972674  Spotify: https://open.spotify.com/show/2sgLMFv1Z8DwEz87yUpapI?si=29a177a6c6ca4ed4  YouTube: https://www.youtube.com/@korrmed/podcasts  YouTube Music: https://music.youtube.com/playlist?list=PLVCRWXBDdFo_S0OeaAsPv8xTnfajTLc75&si=d4wVUA0jqajkbukB  Amazon: https://music.amazon.com/podcasts/d76834b7-c11a-485f-8010-32b490d49e57/metabolic-mastery  

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 the hardest one — it's the one designed to measure exactly what you need to know. Marc and Cameron walk through equipment selection, protocol design, test length, and the critical indicators that confirm a true VO2 max has been reached. They also explore why calling it "exercise metabolic testing" rather than "VO2 max testing" opens the door to richer, more actionable clinical data — including fat oxidation, lactate thresholds, energy system analysis, and more. You'll Learn: Why "test what you intend to measure" should guide every protocol decision How to choose the right exercise modality (treadmill, cycle, rucksack, and more) based on your client's primary activity The ideal test length range and how to avoid peripheral fatigue skewing your results Key indicators of a true VO2 max: VO2 plateau, RER thresholds, RPE, and age-predicted heart rate percentage The difference between VO2 max and VO2 peak — and why it matters clinically When submaximal testing is the smarter (and safer) choice How the Cardio Coach enables extrapolated VO2 max from submaximal data — and its limitations Pre-participation screening tools like the PAR-Q and how they shape your test design Why VO2 max alone doesn't tell the whole performance story Follow KORR: Instagram: https://www.instagram.com/korrmedical/  Facebook: https://www.facebook.com/korrmedical/  LinkedIn: https://www.linkedin.com/company/korrmedical https://korr.com/  Listen to the Metabolic Mastery Podcast: Apple Podcast: https://podcasts.apple.com/us/podcast/metabolic-mastery/id1812972674  Spotify: https://open.spotify.com/show/2sgLMFv1Z8DwEz87yUpapI?si=29a177a6c6ca4ed4  YouTube: https://www.youtube.com/@korrmed/podcasts  YouTube Music: https://music.youtube.com/playlist?list=PLVCRWXBDdFo_S0OeaAsPv8xTnfajTLc75&si=d4wVUA0jqajkbukB  Amazon: https://music.amazon.com/podcasts/d76834b7-c11a-485f-8010-32b490d49e57/metabolic-mastery  

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 (Obesity Medicine Association) conference, they break down why generic exercise advice fails, how providers can think about movement as a titratable prescription, and why the frequency → duration → intensity framework is the key to sustainable progress without burnout or injury. You'll Learn: Why most exercise programs fail deconditioned patients — and what to do differently The frequency → duration → intensity framework for building lasting exercise habits How to think about "minimum effective dose" when prescribing movement Why exhaustion is not the same as effectiveness How VO2 max and submaximal testing can guide exercise prescription for obese patients The role of progressive overload — and how to explain it to patients How to identify and work around gym intimidation, joint pain, and fear of movement Why non-scale victories matter and how to use them to build patient motivation How to connect exercise to patients' personal goals (grandkids, horses, basketball) for real buy-in How providers with limited time can still make a meaningful difference through referral networks and the right questions   Follow KORR: Instagram: https://www.instagram.com/korrmedical/  Facebook: https://www.facebook.com/korrmedical/  LinkedIn: https://www.linkedin.com/company/korrmedical https://korr.com/  Listen to the Metabolic Mastery Podcast: Apple Podcast: https://podcasts.apple.com/us/podcast/metabolic-mastery/id1812972674  Spotify: https://open.spotify.com/show/2sgLMFv1Z8DwEz87yUpapI?si=29a177a6c6ca4ed4  YouTube: https://www.youtube.com/@korrmed/podcasts  YouTube Music: https://music.youtube.com/playlist?list=PLVCRWXBDdFo_S0OeaAsPv8xTnfajTLc75&si=d4wVUA0jqajkbukB  Amazon: https://music.amazon.com/podcasts/d76834b7-c11a-485f-8010-32b490d49e57/metabolic-mastery  

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 them. From the Minnesota Starvation Experiment to walkable European cities, from hunger hormones to hyper-palatable processed foods, Marc and Cameron break down the real science of why our bodies resist weight loss — and what we can actually do about it. They also clarify some of the most commonly confused terms in the fitness world: fat oxidation, fat burn, fat loss, and weight loss — and why mixing them up leads people to the wrong conclusions. You Will Learn: Why obesity is a public health issue and an individual challenge — and why the answer is always "both" The biological mechanisms (hunger hormones, metabolic adaptation) that make weight loss genuinely hard The critical differences between fat oxidation, fat burn, fat loss, and weight loss Why lean mass is not the same as muscle — and what "fat-free mass" actually means How sleep, stress, hormones, and movement are just as important as diet in managing body weight Why slow, steady weight loss preserves muscle and leads to better long-term outcomes How GLP-1 medications work as a tool to "put on glasses" and restore food choice clarity How community design, zoning laws, and food environments shape our health decisions Why metabolic testing (RMR + VO2 max) is a vital sign that should be part of every annual checkup How the Cardio Coach helps individualize exercise and nutrition programming for real people Follow KORR: Instagram: https://www.instagram.com/korrmedical/  Facebook: https://www.facebook.com/korrmedical/  LinkedIn: https://www.linkedin.com/company/korrmedical https://korr.com/  Listen to the Metabolic Mastery Podcast: Apple Podcast: https://podcasts.apple.com/us/podcast/metabolic-mastery/id1812972674  Spotify: https://open.spotify.com/show/2sgLMFv1Z8DwEz87yUpapI?si=29a177a6c6ca4ed4  YouTube: https://www.youtube.com/@korrmed/podcasts  YouTube Music: https://music.youtube.com/playlist?list=PLVCRWXBDdFo_S0OeaAsPv8xTnfajTLc75&si=d4wVUA0jqajkbukB  Amazon: https://music.amazon.com/podcasts/d76834b7-c11a-485f-8010-32b490d49e57/metabolic-mastery

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 variables can completely skew results. And if your data is off, every recommendation you make after that is off too. This episode walks you through how to standardize your testing, troubleshoot bad results, and ensure you're actually measuring what you think you're measuring. Because better data = better decisions = better outcomes You Will Learn Why standardization is the key to accurate VO2 and RMR testing The "Big 3" test prep rules: fasted, rested, uncaffeinated How caffeine, stress, and exercise can skew metabolic results Why most bad test results are NOT the machine's fault How to identify false high or low RMR readings The biggest mistakes people make during VO2 testing How to choose the right protocol based on the client Why some people don't hit anaerobic threshold (AT)—and what to do When to retest vs. trust the data How to interpret results when they don't match expectations Follow KORR: Instagram: https://www.instagram.com/korrmedical/  Facebook: https://www.facebook.com/korrmedical/  LinkedIn: https://www.linkedin.com/company/korrmedical https://korr.com/  Listen to the Metabolic Mastery Podcast: Apple Podcast: https://podcasts.apple.com/us/podcast/metabolic-mastery/id1812972674  Spotify: https://open.spotify.com/show/2sgLMFv1Z8DwEz87yUpapI?si=29a177a6c6ca4ed4  YouTube: https://www.youtube.com/@korrmed/podcasts  YouTube Music: https://music.youtube.com/playlist?list=PLVCRWXBDdFo_S0OeaAsPv8xTnfajTLc75&si=d4wVUA0jqajkbukB  Amazon: https://music.amazon.com/podcasts/d76834b7-c11a-485f-8010-32b490d49e57/metabolic-mastery  

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 everyday clients, choosing the wrong testing modality can lead to inaccurate heart rate zones, flawed exercise prescriptions, and wasted training effort. This episode gives you a clear framework to ensure your testing actually matches your goals—so you stop guessing and start optimizing. You Will Learn Why there is no "best" testing method—only the right one for your goal How bike vs treadmill testing changes VO2 max results The biggest mistake coaches make when prescribing exercise zones Why muscle recruitment dramatically impacts test outcomes How to choose the right modality based on your client or sport The hidden dangers of mismatched testing and training modes Why repeatability matters more than perfection in testing How different modalities affect heart rate zones and perceived effort The role of safety, experience, and biomechanics in test selection Why testing should mirror real-world performance as closely as possible How improper testing can lead to overtraining or undertraining The difference between muscular fatigue vs cardiovascular limitation Why cross-training requires separate testing for accuracy How to use testing data to improve—not criticize—clients The framework for designing smarter, more effective metabolic tests Follow KORR: Instagram: https://www.instagram.com/korrmedical/  Facebook: https://www.facebook.com/korrmedical/  LinkedIn: https://www.linkedin.com/company/korrmedical https://korr.com/  Listen to the Metabolic Mastery Podcast: Apple Podcast: https://podcasts.apple.com/us/podcast/metabolic-mastery/id1812972674  Spotify: https://open.spotify.com/show/2sgLMFv1Z8DwEz87yUpapI?si=29a177a6c6ca4ed4  YouTube: https://www.youtube.com/@korrmed/podcasts  YouTube Music: https://music.youtube.com/playlist?list=PLVCRWXBDdFo_S0OeaAsPv8xTnfajTLc75&si=d4wVUA0jqajkbukB  Amazon: https://music.amazon.com/podcasts/d76834b7-c11a-485f-8010-32b490d49e57/metabolic-mastery  

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 intake and resistance training are critical during weight loss, and how the body adapts over time by slowing metabolism, reducing activity, and increasing hunger signals. They also dive into the difference between fat oxidation and fat loss, why many people hit frustrating plateaus, and how tools like RMR testing and VO2 exercise testing can help create more accurate, individualized strategies for long-term success. This episode is a practical, science-based look at how to improve body composition without relying on guesswork, crash diets, or misleading "fat-burning" claims. What You Will Learn What body recomposition really means Why losing fat while preserving muscle is challenging How calorie deficits can affect lean mass and resting metabolic rate Why protein intake matters during weight loss The role resistance training plays in preserving and building muscle Why fat oxidation does not automatically mean fat loss How sleep, recovery, and stress impact body composition changes Why weight-loss plateaus happen and how metabolic testing can help How RMR and VO2 testing can create a more personalized plan Why sustainable lifestyle changes matter more than rapid weight loss   Follow KORR: Instagram: https://www.instagram.com/korrmedical/  Facebook: https://www.facebook.com/korrmedical/  LinkedIn: https://www.linkedin.com/company/korrmedical https://korr.com/  Listen to the Metabolic Mastery Podcast: Apple Podcast: https://podcasts.apple.com/us/podcast/metabolic-mastery/id1812972674  Spotify: https://open.spotify.com/show/2sgLMFv1Z8DwEz87yUpapI?si=29a177a6c6ca4ed4  YouTube: https://www.youtube.com/@korrmed/podcasts  YouTube Music: https://music.youtube.com/playlist?list=PLVCRWXBDdFo_S0OeaAsPv8xTnfajTLc75&si=d4wVUA0jqajkbukB  Amazon: https://music.amazon.com/podcasts/d76834b7-c11a-485f-8010-32b490d49e57/metabolic-mastery  

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 just as clinical tools, but as part of a stronger business model that improves client outcomes and creates more long-term value. Drawing from their experience building BodySmart, they walk through the evolution from insurance-based care to cash-pay services, packages, memberships, and long-term transformation models. This conversation also dives into one of the biggest mindset shifts in healthcare and fitness: charging appropriately so you can stay in business long enough to actually help more people. If you have ever wondered how to price testing, create better client buy-in, improve retention, or build referral loops around metabolic testing, this episode is packed with practical insights. What You Will Learn Why successful businesses are essential if you want to truly help more people How to position metabolic testing as an investment in health, not just an expense The difference between using testing as a direct revenue stream versus a value add How BodySmart evolved from traditional physical therapy into a wellness-focused model Why behavior change requires longer-term care models, not just quick fixes How better storytelling and better listening improve compliance and client outcomes How to identify your target audience and build services around their needs Why staff buy-in is critical when adding metabolic testing to your business How referral partnerships can accelerate growth for a testing-based business A simple way to think about ROI when adding VO2 max and RMR testing to your practice   Follow KORR: Instagram: https://www.instagram.com/korrmedical/  Facebook: https://www.facebook.com/korrmedical/  LinkedIn: https://www.linkedin.com/company/korrmedical https://korr.com/  Listen to the Metabolic Mastery Podcast: Apple Podcast: https://podcasts.apple.com/us/podcast/metabolic-mastery/id1812972674  Spotify: https://open.spotify.com/show/2sgLMFv1Z8DwEz87yUpapI?si=29a177a6c6ca4ed4  YouTube: https://www.youtube.com/@korrmed/podcasts  YouTube Music: https://music.youtube.com/playlist?list=PLVCRWXBDdFo_S0OeaAsPv8xTnfajTLc75&si=d4wVUA0jqajkbukB  Amazon: https://music.amazon.com/podcasts/d76834b7-c11a-485f-8010-32b490d49e57/metabolic-mastery  

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 predictors of long-term health, how modern metabolic testing goes far beyond a single score, and why understanding things like fat burning, carbohydrate use, cardiovascular fitness, muscular health, and recovery capacity gives a much more complete picture of human performance. Using real case examples, they show how testing can uncover hidden problems, guide better training and nutrition decisions, and help create personalized programs that actually fit the individual instead of relying on generic formulas or wearable estimates. They also explore what makes a quality metabolic cart accurate, why calibration and system design matter, and how better data leads to better health, better coaching, and better outcomes. What You Will Learn Why VO2 max is such a powerful predictor of health and longevity What has changed in VO2 max testing over the years Why modern metabolic testing is now practical for clinics, gyms, and health clubs Why VO2 testing is about much more than just one number How substrate use helps reveal fat burning and carbohydrate burning patterns Why both strength training and cardio matter for long-term health How metabolic testing helps personalize exercise and nutrition plans Why averages, formulas, and wearables can miss what an individual really needs What to look for in an accurate metabolic testing system How better testing can help people live healthier, more independent lives longer Follow KORR: Instagram: https://www.instagram.com/korrmedical/  Facebook: https://www.facebook.com/korrmedical/  LinkedIn: https://www.linkedin.com/company/korrmedical https://korr.com/  Listen to the Metabolic Mastery Podcast: Apple Podcast: https://podcasts.apple.com/us/podcast/metabolic-mastery/id1812972674  Spotify: https://open.spotify.com/show/2sgLMFv1Z8DwEz87yUpapI?si=29a177a6c6ca4ed4  YouTube: https://www.youtube.com/@korrmed/podcasts  YouTube Music: https://music.youtube.com/playlist?list=PLVCRWXBDdFo_S0OeaAsPv8xTnfajTLc75&si=d4wVUA0jqajkbukB  Amazon: https://music.amazon.com/podcasts/d76834b7-c11a-485f-8010-32b490d49e57/metabolic-mastery  

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 needs clearer terminology, more consistent intensity definitions, and more personalized ways to prescribe exercise. They unpack the confusion around terms like ventilatory threshold, lactate threshold, metabolic threshold, and heart rate zones, and explain why population-based recommendations are useful for public health but often fall short when it comes to helping real people improve fitness, avoid plateaus, and reduce injury risk. The conversation also dives into VO2 testing, substrate utilization, strength training intensity, recovery, and why better data leads to better outcomes. If you have ever wondered why two people can do the "same workout" and get very different results, this episode explains exactly why. What You Will Learn Why exercise prescription should be individualized instead of based only on generic guidelines How inconsistent terminology creates confusion in exercise science and coaching The difference between public health activity recommendations and performance-based exercise prescription Why metabolic thresholds matter more than simple percentage-based training methods How VO2 testing helps create more accurate heart rate zones and training targets Why some people plateau even when they think they are training in the right zone How to think about minimum effective dose versus maximal recoverable volume Why intensity and duration must be balanced carefully to avoid burnout and injury How resistance training intensity differs from cardiovascular training intensity Why precision exercise prescription can improve adherence, recovery, and long-term results Follow KORR: Instagram: https://www.instagram.com/korrmedical/  Facebook: https://www.facebook.com/korrmedical/  LinkedIn: https://www.linkedin.com/company/korrmedical https://korr.com/  Listen to the Metabolic Mastery Podcast: Apple Podcast: https://podcasts.apple.com/us/podcast/metabolic-mastery/id1812972674  Spotify: https://open.spotify.com/show/2sgLMFv1Z8DwEz87yUpapI?si=29a177a6c6ca4ed4  YouTube: https://www.youtube.com/@korrmed/podcasts  YouTube Music: https://music.youtube.com/playlist?list=PLVCRWXBDdFo_S0OeaAsPv8xTnfajTLc75&si=d4wVUA0jqajkbukB  Amazon: https://music.amazon.com/podcasts/d76834b7-c11a-485f-8010-32b490d49e57/metabolic-mastery

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 the game. They explain how resting metabolic rate (RMR), MET values, and predictive equations are used inside software tools, why wearables often overestimate calorie burn, and how VO₂ testing allows clinicians to dial in nutrition and exercise with far greater precision. Most importantly, they discuss how accurate data helps practitioners move from blaming patients to partnering with them — using physiology instead of assumptions to guide better outcomes.  What You Will Learn Why exercise calories are always estimates (unless you're in a metabolic chamber) How RMR and METs are used to calculate calorie burn Why wearables can be 28–93% inaccurate The difference between accuracy and precision in tracking data Why exercise only accounts for ~5% of total daily energy expenditure The truth about EPOC and post-workout calorie burn How underfueling leads to RED-S and metabolic downregulation How VO₂ testing personalizes heart rate zones and fuel usage Why accurate data allows clinicians to coach with compassion instead of blame How metabolic testing creates a prescriptive roadmap instead of guesswork   Follow KORR: Instagram: https://www.instagram.com/korrmedical/  Facebook: https://www.facebook.com/korrmedical/  LinkedIn: https://www.linkedin.com/company/korrmedical https://korr.com/  Listen to the Metabolic Mastery Podcast: Apple Podcast: https://podcasts.apple.com/us/podcast/metabolic-mastery/id1812972674  Spotify: https://open.spotify.com/show/2sgLMFv1Z8DwEz87yUpapI?si=29a177a6c6ca4ed4  YouTube: https://www.youtube.com/@korrmed/podcasts  YouTube Music: https://music.youtube.com/playlist?list=PLVCRWXBDdFo_S0OeaAsPv8xTnfajTLc75&si=d4wVUA0jqajkbukB  Amazon: https://music.amazon.com/podcasts/d76834b7-c11a-485f-8010-32b490d49e57/metabolic-mastery  

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, oxygen pulse, and cardiac output, they translate complex physiology into clear, usable concepts. Using simple analogies like furnaces, fuel types, and engine efficiency, they explain how oxygen is used, how fuel sources shift with intensity, and why thresholds matter for both health and performance. This episode is your Rosetta Stone for metabolic testing — helping you interpret data with confidence and communicate results clearly to patients and clients.  What You Will Learn What VO2 actually measures (and what VO2 max does not tell you) The difference between VO2 and VO2 max How VCO2 and Respiratory Exchange Ratio (RER) reveal fuel usage Why fat adaptation changes endurance performance The difference between VT1, VT2, aerobic threshold, anaerobic threshold, and lactate threshold Why lactate is not "lactic acid" — and why that matters What minute ventilation, tidal volume, and breathing frequency indicate How oxygen pulse reflects cardiovascular efficiency Why heart rate recovery is a powerful health metric How to use metabolic testing data to design better training programs Follow KORR: Instagram: https://www.instagram.com/korrmedical/  Facebook: https://www.facebook.com/korrmedical/  LinkedIn: https://www.linkedin.com/company/korrmedical https://korr.com/  Listen to the Metabolic Mastery Podcast: Apple Podcast: https://podcasts.apple.com/us/podcast/metabolic-mastery/id1812972674  Spotify: https://open.spotify.com/show/2sgLMFv1Z8DwEz87yUpapI?si=29a177a6c6ca4ed4  YouTube: https://www.youtube.com/@korrmed/podcasts  YouTube Music: https://music.youtube.com/playlist?list=PLVCRWXBDdFo_S0OeaAsPv8xTnfajTLc75&si=d4wVUA0jqajkbukB  Amazon:  https://music.amazon.com/podcasts/d76834b7-c11a-485f-8010-32b490d49e57/metabolic-mastery

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 ventilatory patterns you can already see in metabolic testing data—without getting fooled by "good" minute ventilation (VE). You'll hear why breathing is controlled differently across intensities, why CO₂ clearance becomes the dominant driver in Zone 4–5, and why trying to "force" nasal breathing or slow breathing during testing and training can backfire. Daniel walks through practical interpretation using breathing frequency + tidal volume, explains how to use GLI predicted values to establish norms, and outlines the seven major types of respiratory limitations—so you can stop guessing, stop mislabeling problems as metabolic, and start fixing the true limiter. What you will learn Why VE can look "good" even when breathing is inefficient (and why it can fool you) How to read breathing using tidal volume (VT) + breathing frequency (BF) across zones The real role of breathing at higher intensities: CO₂ removal and pH control How to compare Peak VT to predicted FEV1 using GLI norms (and why 75–85% matters) The 7 respiratory limitation types (capacity, capability, coordination, and more) When resistive breathing devices help—and when they reinforce the wrong adaptation How respiratory limits can mask as "metabolic problems" by disrupting O₂ offloading When poor response to training is a red flag that warrants medical referral Follow KORR: Instagram: https://www.instagram.com/korrmedical/  Facebook: https://www.facebook.com/korrmedical/  LinkedIn: https://www.linkedin.com/company/korrmedical https://korr.com/  Listen to the Metabolic Mastery Podcast: Apple Podcast: https://podcasts.apple.com/us/podcast/metabolic-mastery/id1812972674  Spotify: https://open.spotify.com/show/2sgLMFv1Z8DwEz87yUpapI?si=29a177a6c6ca4ed4  YouTube: https://www.youtube.com/@korrmed/podcasts  YouTube Music: https://music.youtube.com/playlist?list=PLVCRWXBDdFo_S0OeaAsPv8xTnfajTLc75&si=d4wVUA0jqajkbukB  Amazon: https://music.amazon.com/podcasts/d76834b7-c11a-485f-8010-32b490d49e57/metabolic-mastery  

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, and how to use question-based selling to help people move forward without pressure or gimmicks. They also connect it directly to metabolic testing: if VO₂ max is a "vital sign," then marketing these services isn't hype — it's getting the right message to the people who need it. You'll hear practical frameworks like going three layers deep, addressing the emotion behind objections (warranty, price, "I need to think about it"), and why your best long-term clients are often the "hardest" initial sales. What you will learn Why "more leads" doesn't matter if it doesn't convert into revenue The mindset shift from "selling" to selling to help How to use question-based selling to let clients persuade themselves A simple way to neutralize "I need to think about it" without being pushy How to uncover the real reason behind price, spouse, and warranty objections Why discounting too fast can actually "cheat" the customer How to sell high-ticket health services ethically by selling outcomes, not features How to create a "start small, build the muscle" spending plan for marketing/ad budgets Why congruence (your real personality + core values) sells better than scripts How better selling improves compliance in clinic-based programs   Follow KORR: Instagram: https://www.instagram.com/korrmedical/  Facebook: https://www.facebook.com/korrmedical/  LinkedIn: https://www.linkedin.com/company/korrmedical https://korr.com/  Listen to the Metabolic Mastery Podcast: Apple Podcast: https://podcasts.apple.com/us/podcast/metabolic-mastery/id1812972674  Spotify: https://open.spotify.com/show/2sgLMFv1Z8DwEz87yUpapI?si=29a177a6c6ca4ed4  YouTube: https://www.youtube.com/@korrmed/podcasts  YouTube Music: https://music.youtube.com/playlist?list=PLVCRWXBDdFo_S0OeaAsPv8xTnfajTLc75&si=d4wVUA0jqajkbukB  Amazon: https://music.amazon.com/podcasts/d76834b7-c11a-485f-8010-32b490d49e57/metabolic-mastery  

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 trainable, why wearables can mislead, how fat burning and VO2 max don't always move together, and why the best program isn't the most intense—it's the one you can recover from and repeat. What you will learn Why VO2 max is not "lung capacity," and what typically limits most people How trainable VO2 max really is—and why "genetics" is often an excuse Why VO2 max alone doesn't predict who wins (threshold, economy, utilization matter) Why VO2 max matters for longevity and mortality risk—not just athletes How Zone 2 and high-intensity work fit together (and why "moderate-hard" stalls progress) Why higher VO2 max doesn't automatically mean better fat burning Where wearables help, where they don't, and how to interpret the data responsibly How metabolic testing can reduce guesswork and improve training decisions   Follow KORR: Instagram: https://www.instagram.com/korrmedical/  Facebook: https://www.facebook.com/korrmedical/  LinkedIn: https://www.linkedin.com/company/korrmedical https://korr.com/  Listen to the Metabolic Mastery Podcast: Apple Podcast: https://podcasts.apple.com/us/podcast/metabolic-mastery/id1812972674  Spotify: https://open.spotify.com/show/2sgLMFv1Z8DwEz87yUpapI?si=29a177a6c6ca4ed4  YouTube: https://www.youtube.com/@korrmed/podcasts  YouTube Music: https://music.youtube.com/playlist?list=PLVCRWXBDdFo_S0OeaAsPv8xTnfajTLc75&si=d4wVUA0jqajkbukB  Amazon: https://music.amazon.com/podcasts/d76834b7-c11a-485f-8010-32b490d49e57/metabolic-mastery  

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 Garber break down how misinformation and nocebo language can increase pain, reduce confidence, and drive people into fear-avoidance patterns that worsen outcomes over time. They also explain why uncertainty is so stressful for patients, how neutral data can create clarity and alignment, and how better testing and better questions lead to better decisions—without unnecessary restrictions or burnout. What You Will Learn What "first, do no harm" means in a modern clinical and coaching context How fear-based or nocebo language can increase pain and reduce adherence What informed consent should include (options, tradeoffs, short- vs long-term consequences) Why pain is not always a sign of damage—and how beliefs can amplify symptoms How the biopsychosocial model reframes pain, recovery, and long-term resilience The hidden harm of low-value interventions and "majoring in the minors" Why bad exercise prescriptions lead to burnout, injury, and dropout How heart-rate zones get misapplied—and why accurate zones support sustainable progress Why the most harmful message is convincing people they're fragile Follow KORR: Instagram: https://www.instagram.com/korrmedical/  Facebook: https://www.facebook.com/korrmedical/  LinkedIn: https://www.linkedin.com/company/korrmedical https://korr.com/  Listen to the Metabolic Mastery Podcast: Apple Podcast: https://podcasts.apple.com/us/podcast/metabolic-mastery/id1812972674  Spotify: https://open.spotify.com/show/2sgLMFv1Z8DwEz87yUpapI?si=29a177a6c6ca4ed4  YouTube: https://www.youtube.com/@korrmed/podcasts  YouTube Music: https://music.youtube.com/playlist?list=PLVCRWXBDdFo_S0OeaAsPv8xTnfajTLc75&si=d4wVUA0jqajkbukB  Amazon: https://music.amazon.com/podcasts/d76834b7-c11a-485f-8010-32b490d49e57/metabolic-mastery  

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 right." You'll hear how appetite, food processing, stress, sleep, and the modern food environment quietly push calories in—while metabolic adaptation, sedentary lifestyles, and declining NEAT (non-exercise activity thermogenesis) suppress calories out. Then, the conversation shifts to what actually works long-term: building sustainable systems, using exercise to "tune up the machine," and focusing on body composition and metabolic health instead of daily scale fluctuations. What you will learn Why calories in vs. calories out is true—and why it still feels like it "doesn't work" in real life The difference between scale weight vs. fat mass, and why day-to-day weigh-ins can create false conclusions How macronutrient shifts, sodium, digestion, and water retention can swing the scale fast without changing body fat The biggest drivers of "calories in": energy density, hyper-palatability, labels/portion variability, absorption, stress, and sleep Why NEAT is often the hidden lever for fat loss (and why "just exercise more" is rarely the answer) What metabolic adaptation is, why plateaus happen, and how RMR testing can guide smarter adjustments How VO₂ testing and heart-rate zones change over time—and why retesting improves results The real relationship between hormones/menopause/aging and body composition (including fat distribution changes) Why fitness can outweigh BMI for health risk—and why "losing weight fast" can backfire metabolically A practical framework to reduce shame: skill gap vs. will gap vs. environment gap Follow KORR: Instagram: https://www.instagram.com/korrmedical/  Facebook: https://www.facebook.com/korrmedical/  LinkedIn: https://www.linkedin.com/company/korrmedical https://korr.com/  Listen to the Metabolic Mastery Podcast: Apple Podcast: https://podcasts.apple.com/us/podcast/metabolic-mastery/id1812972674  Spotify: https://open.spotify.com/show/2sgLMFv1Z8DwEz87yUpapI?si=29a177a6c6ca4ed4  YouTube: https://www.youtube.com/@korrmed/podcasts  YouTube Music: https://music.youtube.com/playlist?list=PLVCRWXBDdFo_S0OeaAsPv8xTnfajTLc75&si=d4wVUA0jqajkbukB  Amazon: https://music.amazon.com/podcasts/d76834b7-c11a-485f-8010-32b490d49e57/metabolic-mastery

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 the nation's largest health talk radio show. Dr. Asa shares his unique journey from professional wrestling to clinical practice—and back again—highlighting how metabolic testing, VO₂ max, and cardiorespiratory fitness have become foundational tools for performance, injury prevention, and long-term health. From elite athletes and entertainers to everyday patients in their 70s and 80s, this conversation explores why VO₂ max should be treated as a key vital sign, how it predicts longevity more effectively than many traditional metrics, and why most age-related decline is driven by deconditioning—not aging itself. This episode bridges the gap between healthcare and fitness, showing how actionable metabolic data empowers people to stop guessing, avoid burnout, and take the next right step toward better health—at any age. What You'll Learn in This Episode Why VO₂ max is one of the strongest predictors of longevity and all-cause mortality How metabolic testing improves safety and performance in high-demand sports like professional wrestling The difference between weight loss and healthy weight loss that preserves lean mass Why many signs of "aging" are actually the result of inactivity and lost capacity How VO₂ max and RMR testing guide personalized training and nutrition decisions Why fitness and healthcare must converge to support long-term health outcomes How actionable data helps patients avoid pseudoscience and fitness fads Why it's never too late—or too early—to improve cardiorespiratory fitness Follow KORR: Instagram: https://www.instagram.com/korrmedical/  Facebook: https://www.facebook.com/korrmedical/  LinkedIn: https://www.linkedin.com/company/korrmedical https://korr.com/  Listen to the Metabolic Mastery Podcast: Apple Podcast: https://podcasts.apple.com/us/podcast/metabolic-mastery/id1812972674  Spotify: https://open.spotify.com/show/2sgLMFv1Z8DwEz87yUpapI?si=29a177a6c6ca4ed4  YouTube: https://www.youtube.com/@korrmed/podcasts  YouTube Music: https://music.youtube.com/playlist?list=PLVCRWXBDdFo_S0OeaAsPv8xTnfajTLc75&si=d4wVUA0jqajkbukB  Amazon: https://music.amazon.com/podcasts/d76834b7-c11a-485f-8010-32b490d49e57/metabolic-mastery  

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. The conversation cuts through buzzwords like "cellular fitness," "biological age," and proprietary health scores to explain the difference between measured, calculated, and extrapolated biomarkers. You'll learn why standardized testing conditions matter, how poor data can lead to decision paralysis, and why the best biomarkers don't give answers—they help you ask better questions. If you've ever wondered whether your health data is actionable or just decoration, this episode provides a clear framework for evaluating biomarkers and using them responsibly to improve real-world health outcomes. What You'll Learn What a biomarker actually is—and why definitions matter The three tiers of biomarkers: measured, calculated, and extrapolated Why more biomarkers do not automatically mean better insight How marketing-driven health scores can mislead patients and clinicians Why VO₂ max is a powerful biomarker—and where its limits are The importance of standardized testing conditions for repeatable results How wearables can create anxiety and decision paralysis when misused Why biomarkers should reduce uncertainty, not add noise How good data leads to better questions—not instant answers A practical framework for deciding which biomarkers are truly useful  Follow KORR: Instagram: https://www.instagram.com/korrmedical/  Facebook: https://www.facebook.com/korrmedical/  LinkedIn: https://www.linkedin.com/company/korrmedical https://korr.com/  Listen to the Metabolic Mastery Podcast: Apple Podcast: https://podcasts.apple.com/us/podcast/metabolic-mastery/id1812972674  Spotify: https://open.spotify.com/show/2sgLMFv1Z8DwEz87yUpapI?si=29a177a6c6ca4ed4  YouTube: https://www.youtube.com/@korrmed/podcasts  YouTube Music: https://music.youtube.com/playlist?list=PLVCRWXBDdFo_S0OeaAsPv8xTnfajTLc75&si=d4wVUA0jqajkbukB  Amazon: https://music.amazon.com/podcasts/d76834b7-c11a-485f-8010-32b490d49e57/metabolic-mastery