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 oxidative pathways), explore how different muscle fiber types adapt to training stress, and reveal why rest intervals between workouts can completely change your results. Plus, discover why central fatigue, sleep, and nutrition are often the real limiting factors in your performance.

• What metabolic changes occur BEFORE you see improvements in VO2 max
• How the three energy systems work and which training style targets each one
• Why rest intervals between sets determine whether you build endurance or power
• The critical role of muscle fiber type adaptations in athletic performance
• How sleep deprivation can sabotage your training adaptations (even when everything else is perfect)
• Why your training plateau might actually be a lifestyle factor, not a programming issue
• The difference between peripheral fatigue and central nervous system fatigue
• How to individualize training based on your unique physiology and constraints
• The importance of metabolic testing beyond just VO2 max numbers
• Practical frameworks for designing training that actually produces results

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 on it.

We explore the six pillars of sustainable health, real-world examples of staying young at 90+, and why metabolic testing is your crystal ball for future fitness. Learn how to design a maintenance program that actually works, prevent the 10% VO2 max decline per decade, and combat muscle loss with actionable strategies.

You Will Learn:

• Why "maintenance" requires continuous progression, not repetition
• How the SAID principle drives aging and fitness adaptations
• The six pillars of health and how to optimize each one
• Real data: VO2 max, muscle mass, and metabolic rate changes with age
• Why activity levels matter more than genetics for longevity
• How metabolic testing reveals your fitness future and prevents burnout
• Practical strategies to stay active across all life stages
• Why your 93-year-old neighbor stays younger than people half his age

Learn More From Sebastian: inscyd.com

Get 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 your current training zones might be limiting your progress, how lactate testing reveals hidden training insights, and the practical applications that separate elite athletes from everyone else.

• Why standardized training zones fail (and what actually works)
• The difference between VO2 Max and VLAMax — and why both matter
• How lactate production and clearance determine race strategy
• Muscle fiber recruitment patterns and why you can't neglect glycolytic power
• Real case studies: Programming for HyROX athletes, cyclists, and endurance performers
• The truth about fasted training, periodization, and training variation
• How metabolic data creates a "crystal ball" into what athletes have been doing
• Why understanding the mechanism behind training beats following trends

Perfect for coaches, athletes, fitness professionals, and anyone serious about optimizing performance through science.

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, zone training, and cardiopulmonary exercise testing (CPET).

They break down why VO2 max is a powerful, well-validated number, but a dangerous one to chase in isolation and what actually determines whether VO2 max testing will help you build lasting fitness or just become this decade's fleeting trend.

You Will Learn:

• The 10-question "Fitness Fad Decoder" framework for evaluating any health or fitness trend
• Why VO2 max is a great indicator of fitness but not a complete picture of health or longevity
• The difference between population-based heart rate zones and physiology-based training zones
• Why chasing a single VO2 max score can actually increase injury and burnout risk
• How fat oxidation (fat-burn zone) differs from fat loss — and why the two get confused
• What determines whether high-intensity training like the Norwegian 4x4 is right for you right now
• How symptom-limited and submaximal testing can safely inform training for nearly any population
• Why cardiovascular reserve and muscle mass both matter for long-term health, not just VO2 max
• How to evaluate research claims and identify influencer overclaims around fitness trends
• Why investing in accurate metabolic testing may be one of the highest-ROI decisions for your health or your practice

Follow Stephen:

Instagram: _stephenolson

Get 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 gains.

From testing Everest summiteers to diagnosing why runners plateau despite consistent training, Stephen reveals the clinical secrets that separate generic fitness advice from data-driven results.

You Will Learn:

• Why VO2 max correlates with longevity (and what it actually means)
• The 3 metabolic testing methods that replace guesswork in your training program
• How to identify your true fat-burning zone—without an expensive device
• The respiratory limitation that cost one Boston Marathon qualifier 2 years of progress
• Why testing yourself 200+ times is the fastest path to coaching mastery
• How to use metabolic data to sell premium coaching packages (business angle)
• The fat oxidation graph that makes clients immediately "get" their training zones
• Why 95% of people will choose premium packages when you show them this data first

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 specialist to cut through the noise around VO2 max, zone training, and metabolic testing.

Daniel breaks down why devices measuring O2 only can't actually calculate a true VO2 max, why a high VO2 max doesn't mean someone is metabolically healthy, and how misapplied protocols like the Norwegian 4x4 can do more harm than good when they ignore an individual's actual limiters. Using a real case study a high-performing executive whose cardiovascular numbers looked great but whose metabolic health was quietly falling apart Daniel shows why testing without proper analysis is nearly worthless.

You Will Learn:

• Why VO2 max and VO2 peak are not the same thing, and why that distinction matters
• Why O2-only devices can't truly measure VO2 max (and what gets lost in the algorithm)
• How to identify which system — cardiovascular, respiratory, or metabolic — is actually limiting performance
• Why "zone two" and "zone five" training aren't competing philosophies but serve different physiological purposes
• What near-infrared spectroscopy (NIRS) can and can't tell you about performance
• Why lactate testing has real limits — and where marketing claims cross into dishonesty
• How AI-generated fitness advice can sound convincing while being physiologically inaccurate
• Why testing to the modality (rather than testing to find true limitations) leads to bad programming
• How proper zoning through metabolic testing can prevent long-term issues like metabolic disease
• What separates a trustworthy fitness expert from an untrustworthy one (hint: they say "it depends")

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 designed a program focused on injury prevention and performance, and how weight loss followed naturally as a byproduct.

You Will Learn:

• Why telling injured runners to "rest it away" creates a vicious cycle that destroys tissue capacity over time
• How RMR data revealed this client preserved muscle mass during 12%+ body weight loss
• Why metabolic adaptation causes RMR to drop 5–30% beyond what fat loss alone explains and how to track it
• The load vs. capacity framework that allowed this client to run every single day for a year injury-free
• How Zone 2 training reduced injury risk while actually improving race paces at age 41
• Why adherence not the "optimal" program is the single biggest predictor of weight loss success
• How protein intake (1.6g/kg) and resistance training protect fat-free mass during weight loss
• The danger of false dichotomies in fitness (HIIT vs. Zone 2, cardio vs. strength) and why both are needed
• Why bone stress injuries are usually an under-fueling problem, not an overuse problem
• How to use metabolic retesting to iterate your coaching when results aren't going as expected

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-rely on research or dismiss it entirely. Marc and Cameron walk through a practical framework for reading research critically, understanding study design, and using metabolic testing data — including VO2 max and resting metabolic rate — to personalize care and training in the real world.

You Will Learn:

• What "N of 1" means and why it matters for your health and training
• How to evaluate research quality, including study design, population relevance, and statistical vs. clinical significance
• Why your VO2 max or RMR result may look "normal" but still be telling an important story about your individual trajectory
• The difference between a research roadmap and a blueprint — and how to stop confusing the two
• How Bayesian reasoning can help you update your beliefs without flip-flopping on every new study
• Why placebo effect, natural disease history, and confirmation bias can fool even experienced clinicians
• How the "evidence-based medicine funnel" works: best available research → clinical expertise → individual goals and constraints
• Real examples of how metabolic testing reveals outliers that population averages would completely miss
• Why effect size matters just as much as statistical significance when evaluating any intervention
• How to run your own mini N of 1 experiments over time using repeat metabolic 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 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 and the CardioCoach — in plain language anyone can understand and explain.

You Will Learn:

• What metabolism actually is — and why it's so much bigger than just weight loss or fat burning
• How your body's three energy systems (ATP-PCr, glycolytic, and oxidative) work together at every intensity level
• Why the Krebs cycle and electron transport chain matter for your fitness — explained simply
• What the Respiratory Exchange Ratio (RER) is and how it reveals whether you're burning fat or carbohydrates
• How indirect calorimetry calculates calories burned from just your breath — and the foundational science behind it
• What VO2, VCO2, and VO2 pulse actually mean and what they tell us about your cardiovascular health
• Why metabolic testing isn't just for elite athletes — and how it can help anyone exercise smarter and live 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/

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 drives lasting adaptation over time.

You Will Learn:

• Why fat oxidation during a workout is NOT the same as fat loss over time
• The real science behind fasted cardio and train-low strategies — and when they help or hurt
• Why cortisol and insulin get unfairly demonized, and what they actually do in your body
• How short-term hormonal spikes (testosterone, IGF-1, cortisol) do or don't predict long-term outcomes like muscle growth
• Why Zone 2 training drives mitochondrial and cardiovascular adaptation — and how metabolic testing helps you stay in the right zone
• A practical framework for evaluating health and fitness claims you see on social media
• Why consistency — not any single workout strategy — is the biggest lever for long-term health

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