Podcast appearances and mentions of paul laursen

We sit down with Prof Guillaume Millet to get clear on what fatigue actually is, why durability became the new buzzword, and what really limits performance in ultra endurance events. We dig into central vs peripheral fatigue, why muscle damage matters so much in trail and mountain running, and how shock weekends can build the resilience you cannot fake on race day. We also talk heat, perceived exertion, field monitoring tools, and his new Zero to 100 project taking sedentary adults to a 100k mountain race in 18 months.References:https://pubmed.ncbi.nlm.nih.gov/22323647/https://pubmed.ncbi.nlm.nih.gov/39405022/https://journals.physiology.org/doi/full/10.1152/japplphysiol.00692.2025?rfr_dat=cr_pub++0pubmed&url_ver=Z39.88-2003&rfr_id=ori%3Arid%3Acrossref.org_____________________ Today's speakers:Prof Paul Laursen  https://www.paullaursen.com/   Prof Guillaume Millet https://www.linkedin.com/in/kinesiologui/

In this episode of The Athletes Compass, Dr. Paul Laursen and the team break down the science and practical application of the second threshold — also known as LT2, VT2, FTP, or critical power. They explain what physiologically happens when you cross this boundary, why base training is essential before adding threshold work, and how over-unders, tempo sessions, and VO2 max intervals raise performance. The conversation explores common mistakes athletes make (especially doing too much intensity), the role of durability, and how to assess threshold progress without lab testing. If you want to train smarter, improve pacing, and sustainably increase performance, this episode delivers a masterclass in intensity control.Key TakeawaysLT1 vs LT2: LT1 (aerobic threshold) = top of Zone 2, sustainable “all-day” effort. LT2 (second threshold) = highest sustainable steady-state effort before rapid fatigue.Above LT2: Glycolytic demand increases, lactate accumulates faster, heart rate drifts, and fatigue accelerates.Functional vs Lab Testing: FTP and critical power are practical field markers of LT2. Lab tests measure physiology, but field tests often matter more for performance.Day-to-Day Variation Is Real: Sleep, fueling, equipment, environment, and training phase can significantly affect test results.Base Training First: A strong aerobic base (mitochondrial development) improves tolerance to threshold work and increases fat oxidation capacity.Over-Unders Work Because: They stimulate mitochondrial adaptations by forcing lactate clearance and improving aerobic durability.Intensity Control Matters: Spending more time in the correct zone is more beneficial than constantly pushing the top end.Most Common Mistake: Too much high-intensity work without sufficient aerobic base.Durability Is the Goal: Threshold training should build resilience so performance doesn't break down late in races.Paul Warloski - Endurance, Strength Training, YogaMarjaana Rakai - Tired Mom Runs - Where fitness meets motherhood.

Episode 200 marks a major milestone for us, and we celebrate it with someone who played a foundational role in our journey. Professor Ken Nosaka joins us to reflect on how eccentric training research shaped modern training practice and brought our paths together.We revisit the early ECU years, then dive deep into what Ken's research has taught us about muscle soreness, muscle damage, the repeated bout effect, and how adaptation really works. This episode blends history, science, and real world coaching insights that still shape how we train today.

In this episode, we sit down with Dr Andrew Koutnik to unpack one of the most discussed sports science reviews in recent years. Drawing on more than 100 years of research and a series of tightly controlled trials, we examine evidence that challenges the long-held belief that more carbohydrates automatically lead to better performance.We explore why muscle glycogen and carbohydrate oxidation do not consistently predict performance, how athletes can sustain high-intensity and endurance output with much lower carbohydrate intake, and why protecting brain energy may be a key limiter during exercise.The conversation also examines why some highly trained athletes still show markers of poor metabolic health, what this means for current fueling guidelines, and why context matters when translating science into real-world practice._____________________ References:https://academic.oup.com/edrv/advance-article/doi/10.1210/endrev/bnaf038/8432248?login=false_____________________ Today's speakers:Prof Paul Laursen  https://www.paullaursen.com/   Dr Andrew Koutnik https://www.instagram.com/andrewkoutnikphd/

In this episode of Athlete's Compass, hosts Paul Warloski, Dr. Paul Laursen, and Marjaana Rakai explore the overlooked yet critical elements of pre-race preparation: warmups and openers. Drawing on science and experience, they break down concepts like post-activation potentiation (PAP), the Q10 temperature effect, VO2 kinetics, and how proper timing, intensity, and individual context can make or break race performance. The trio shares personal anecdotes, training data insights, and cautionary tales (including cold-water swims gone wrong), helping athletes navigate both physiological and psychological readiness strategies. Whether you're a crit racer, triathlete, or weekend warrior, this episode will change the way you approach race day — and the day before.Key TakeawaysPost-Activation Potentiation (PAP) boosts nervous system readiness for explosive performance.Q10 effect (temperature-driven) enhances muscle enzyme activity—warm muscles perform better.VO2 kinetics are improved with short, intense primers done 5–10 minutes before start time.Day-before openers should include high-intensity, low-volume efforts to keep CNS sharp without fatigue.Warmup routines are highly individual—test in training, adjust for temperature and race type.Over-warming or overtraining pre-race is a common mistake; less is more.Cold environments demand longer warmups and appropriate clothing to avoid CNS suppression.Caffeine can enhance CNS drive when timed 30–90 minutes before competition—test before race day.Effect Of High Intensity Intervals 24hr Prior To A Simulated 40 KM Time TrialThe Effects of a Cycling Warm-up Including High-Intensity Heavy-Resistance Conditioning Contractions on Subsequent 4-km Time Trial Performance - PubMedEffect of warm-up on cycle time trial performance - PubMedImprovement of Oxygen-Uptake Kinetics and Cycling Performance With Combined Prior Exercise and Fast Start - PubMedPaul Warloski - Endurance, Strength Training, YogaMarjaana Rakai - Tired Mom Runs - Where fitness meets motherhood.

In this episode, we sit down with Professor Arne Güllich to unpack one of the most talked about sports science papers in years, recently published in Science. Drawing from data on more than 30,000 high performers across sport, music, chess, and science, the conversation challenges the belief that early dominance and early specialization are the keys to elite success.Arne breaks down the now viral performance trajectory figure, explores why most world class adults were not standout juniors, and explains what truly separates those who peak at the highest level from those who plateau. The discussion moves from theory to practice as Paul reflects on his role as a parent of a 15 year old swimmer, asking the questions many parents and coaches are quietly wrestling with.This episode is essential listening for anyone involved in youth sport, talent development, or long term athlete health and performance.References:https://www.science.org/doi/10.1126/science.adt7790_____________________ Today's speakers:Prof Paul Laursen  https://www.paullaursen.com/   Prof Arne Güllich: https://www.linkedin.com/in/arne-g%C3%BCllich-4438a7376/_____________________ 

In this episode, the Athletes Compass team dives into the physiology and performance science behind 30/30 HIIT intervals—30 seconds on, 30 seconds off. Dr. Paul Laursen explains why these short, intense bursts are so effective at improving VO2 max and recruiting fast-twitch muscle fibers. With insights into training stress, recovery, athlete profiling, and when to use short versus long intervals, the conversation highlights how even endurance athletes can benefit from raising their "ceiling" with strategically timed HIIT sessions. They also cover programming for different athlete types and how tools like Athletica and Velocity help customize training to individual needs.Key Takeaways:30/30 intervals (30 seconds on, 30 seconds off) effectively recruit fast-twitch fibers and promote adaptations in both the cardiovascular and muscular systems.These short intervals stimulate VO2 max while minimizing long-term fatigue compared to longer intervals.Power output is higher during 30/30s than in 4x5 minute VO2 workouts, leading to better adaptations in well-trained athletes.Recovery periods between intervals are key—passive recovery enables myoglobin resaturation and better performance.30/30s can benefit even Ironman athletes, despite the lack of specificity to long race paces.Athlete type matters: “Diesel” athletes may prefer longer intervals; “twitchy” athletes often thrive with short ones.Tools like Athletica's workout reserve and power profile analysis help guide interval prescription.Heart rate and power trends during sets can indicate whether an athlete is adapting well—or overreaching.Athlete Profiling PrimerThe Power of Optimizing HIIT Short IntervalsPaul Warloski - Endurance, Strength Training, YogaMarjaana Rakai - Tired Mom Runs - Where fitness meets motherhood.

In Episode 110, the hosts of The Athletes Compass dive into the overlooked powerhouse of endurance training: cross-training. Dr. Paul Laursen, Marjaana Rakai, and Paul Warloski explore how activities like rowing, skiing, and cycling aren't just recovery fillers—they're performance-enhancing tools backed by science. The trio debates whether strength training should count as cross-training, unpacks when specificity should take priority, and shares stories of elite athletes like Kyle Chalmers and Mahe Drysdale whose success came from training smarter, not harder. More than anything, the conversation is a powerful reminder that enjoying your training—and staying injury-free—may be the ultimate performance advantage.Key TakeawaysStrength Training ≠ Cross-Training: It's foundational and should be part of every endurance athlete's program.Specificity Still Matters: But the need for it increases closer to race day.Cross-Training Works: It can directly improve aerobic fitness, reduce injury risk, and maintain performance.Minimum Effective Dose Exists: You might not need as much sport-specific work as you think.Joy Enhances Adaptation: Enjoyable training (including cross-training) supports better recovery and long-term consistency.Elite Athletes Use It: Olympic champions like Mahe Drysdale and Nils van der Poel used 50%+ cross-training in their routines.Technique is Sport-Specific: For technical sports like swimming or skiing, keeping some year-round specificity is key.Balance is Critical: Cross-training supports mental freshness and helps athletes avoid burnout.

In this episode of the Training Science Podcast, Prof Paul Laursen is joined by Stephan Nüsser, performance physiologist and founder of a performance diagnostics lab in Germany, for a deep and practical discussion on lactate testing and endurance performance. Drawing from decades of applied work with cyclists, endurance athletes, and motocross professionals, Stephan explains how lactate can be used to individualize training, define true Zone 2 intensity, and guide long-term athlete development.The conversation explores why lactate is often misunderstood, how production and clearance reflect underlying metabolism, and why longer step protocols can provide clearer insight than fixed threshold formulas. They also discuss carb-optimized nutrition, metabolic flexibility, and why training and fueling should be viewed as a single integrated system rather than separate decisions.References:https://sndc.de/_____________________ Today's speakers:Prof Paul Laursen  https://www.paullaursen.com/   Stephan Nüsser: https://www.instagram.com/sndcde/_____________________ 

In this episode of The Athlete's Compass, the team introduces Athletica's newly launched AI coach—an intelligent training assistant that combines large language models (LLMs) with athlete-specific data like HRV, sleep, and training load. Unlike generic AI tools, this coach taps into the HIIT Science textbook and contextualizes advice based on six weeks of an athlete's training history. Paul Laursen, Marjaana Rakai, and Paul Warloski walk through how it works, what sets it apart, and demonstrate its capabilities in real-time. The conversation highlights not only the tech's sophistication but its potential to empower athletes and coaches alike through contextual, science-backed decision-making.Key TakeawaysAI + Personal Data = Precision Coaching: The AI coach analyzes training data like HRV, heart rate, and sleep to give context-aware, real-time advice.HIIT Science Textbook is Embedded: It doesn't guess—its responses are backed by content from The Science and Application of High-Intensity Interval Training.Real-Time Scenarios: Whether you're sick, tapering, or targeting a hilly Ironman, the AI provides personalized strategies.Built-In Guardrails: It won't override your training plan but will suggest appropriate tweaks based on your context.For Coaches Too: While not yet multi-athlete enabled, future updates will allow coaches to use it across their roster.Customization: Users can adjust the coach's personality (casual/professional) and depth (plain language to sports science level).AI Agent Architecture: It uses Retrieval-Augmented Generation and purpose-built agents (e.g., for recovery or training load optimization).More Than a Chatbot: Unlike ChatGPT, this coach knows your actual training history and adjusts accordingly.Paul Warloski - Endurance, Strength Training, YogaMarjaana Rakai - Tired Mom Runs - Where fitness meets motherhood.

In this holiday-themed episode, hosts Paul Warloski, Dr. Paul Laursen, and Marjaana Rakai shift the focus away from hustle and mileage to explore the restorative power of seasonal slowing down. Drawing on Nordic traditions and endurance science, the trio discusses how embracing the darkness, cold, and stillness of winter can lead to better recovery, mental clarity, and long-term athletic gains. From saunas and snow plunges to puzzle nights and mindful movement, this conversation is a permission slip to pause and rethink what productive training really means during the holiday season.Key TakeawaysRest is productive: The holidays are a great time to reset, not to push harder.Seasonal rhythms matter: Cold and dark seasons can be powerful recovery periods.Sleep and recovery improve HRV and overall wellness.Cross-training opportunities: Activities like skiing, walking, skating, or fat biking can maintain fitness and refresh the mind.Sauna + snow plunges = physiological and mental recovery.No bad weather, just bad clothing—layer up!Give yourself grace: Missing a session or slowing down won't ruin your fitness.Holiday nutrition should be intuitive, not guilt-driven—enjoy treats in moderation.Make time for family and connection—it's part of your foundation.Paul Warloski - Endurance, Strength Training, YogaMarjaana Rakai - Tired Mom Runs - Where fitness meets motherhood.

In this episode of the Training Science Podcast, Prof Paul Laursen sits down with Professor Anthony Turner to unpack the fundamental laws that underpin performance in every sport, from explosive team games to marathon running and cycling. Instead of debating opinions or trends, Anthony brings everything back to first principles: Newton's laws of motion, impulse, force, and the biomechanics of movement.Using endurance running as the main example, the conversation explores why strength training is just as essential as VO₂max and threshold for performance and economy. Ant explains how maximum strength and rate of force development shape running economy, ground contact time, stretch-shortening cycle efficiency, and ultimately time to exhaustion. They then extend these concepts to running, cycling, and long-term robustness.Listeners will also learn how to progress strength logically: from movement quality and symmetry, to heavy lifting, to power work and plyometrics, all while staying healthy and reducing injury risk. Whether you coach team sports, work with endurance athletes, or train yourself, this episode will change the way you think about strength training, biomechanics, and sport performance.Perfect for anyone interested in strength and conditioning, running economy, endurance performance, injury prevention, and applied sport science.References:https://thefitnessformula.training/_____________________ Today's speakers:Prof Paul Laursen  https://www.paullaursen.com/   Anthony Turner: https://www.linkedin.com/in/anthony-turner-62073788/_____________________ 

In this episode of The Athlete's Compass, co-hosts Paul Warloski, Dr. Paul Laursen, and Marjaana Rakai unpack the often-overlooked reality of race day anxiety for everyday endurance athletes. They explore how physiological responses like elevated heart rate and the “monkey mind” can feel overwhelming, yet serve a functional purpose. The team discusses personal stories, evidence-based strategies like visualization and race-day rehearsals, and the power of simple tools—breathing, smiling, human connection—to reframe anxiety into a performance enhancer. They emphasize preparation, self-efficacy, and presence as key to transforming nerves into fuel.Key Episode TakeawaysRace anxiety is normal—even beneficial. It's your sympathetic nervous system preparing you for peak performance.The amygdala triggers the fight-or-flight response, but emotions like anxiety can be short-lived if not mentally recycled.Preparation is your best defense: mental rehearsal, race plans, and pacing practice reduce unpredictability.Visualize the whole experience: from arriving in town to the final push—especially what to do if things go wrong.Human connection helps regulate cortisol: smiling, eye contact, and small interactions ease stress.Breathe to break the anxiety loop: techniques like box breathing calm the nervous system and restore focus.Self-efficacy is key: confidence from training and process goals reduces pressure on outcome.Reframe nerves as excitement and privilege: gratitude turns stress into motivation.Paul Warloski - Endurance, Strength Training, YogaMarjaana Rakai - Tired Mom Runs - Where fitness meets motherhood.

In this episode of the Training Science Podcast, Prof. Paul Laursen sits down with Athletica's AI modeling lead, Dr. Andrea Zignoli, to break down how artificial intelligence is transforming endurance training. Fresh off publishing three major SPSR papers, Andrea explains the evolution of AI systems inside Athletica — from agent-based modeling, to AI-assisted HRV readiness monitoring, to the use of sentiment as a new internal load signal.Paul and Andrea explore how structured “AI agent” architectures and retrieval-augmented generation (RAG) systems allow large language models to move beyond basic chatbot behavior and become powerful tools for interpreting training data, detecting patterns, and supporting smarter athlete decision-making. They also look ahead at “Sport Science 3.0,” a future where coaching remains deeply human but is amplified by AI that can read files, interpret readiness, understand emotional states, and contextualize performance.Whether you're a coach, athlete, sport scientist, or tech-minded performance professional, this episode offers a clear look at how AI is already shaping modern training — and what's coming next.References:https://tiscourse.vercel.app/abouthttps://sportperfsci.com/the-computational-paths-of-knowledge-in-ai-coaching/https://sportperfsci.com/sports-science-3-0-series-ai-assisted-hrv-monitoring-enhancing-training-load-response-and-decision-making/https://sportperfsci.com/signatures-of-fatigue-transformer-based-sentiment-analysis-for-internal-load-monitoring/_____________________ Today's speakers:Prof Paul Laursen  https://www.paullaursen.com/   Dr. Andrea Zignoli: https://andreazignoli.github.io/ _____________________ 

In this episode of The Athletes Compass, the team—Paul Warloski, Dr. Paul Laursen, and Marjaana Rakai—dives into the world of heart rate. They break down what heart rate data really tells us, why your measurement device matters, and how to avoid common training mistakes. The hosts explore how heart rate interacts with stress, sleep, heat, and ego—and how understanding this interplay can unlock smarter training and recovery. With personal stories, expert insights, and laughs along the way, this episode offers clarity on using heart rate as a tool—not a trap.Key TakeawaysDevice matters: Chest straps provide more accurate heart rate data than wrist-based optical monitors, especially during high-intensity efforts.Context is king: Heart rate is affected by stress, sleep, hydration, heat, and more—don't view it in isolation.Listen to your body first: RPE (Rate of Perceived Effort) should always guide you before any data point.Zone 2 is foundational: Training too hard on easy days is a widespread mistake; true zone 2 work requires discipline.Heat and cardiac drift: Rising heart rate during long or hot sessions can be due to heat stress, not just fatigue.Power vs Heart Rate: Use heart rate for Zone 1–2 training and power/pace for Zone 3+ efforts.Ego check: Don't let ego push you into higher zones when you should be staying easy.Use AI tools like Athletica: Smart software can help interpret heart rate data in context for better decision-making.Article - Pace vs Power vs Heart-Rate: How to Pick the Right Training Metric (and When to Switch)Paul Warloski - Endurance, Strength Training, YogaMarjaana Rakai - Tired Mom Runs - Where fitness meets motherhood.

In this episode of the Training Science Podcast, host Dr. Paul Laursen sits down with neuroscientist and performance expert Dr. Tommy Wood to explore the science behind The Stimulated Mind, Tommy's groundbreaking approach to optimizing brain health and cognitive performance.They dive into the key pillars of a thriving brain: environment, nutrition, metabolic health, sleep, and exercise. From the neonatal ICU to Formula 1 racing, Dr. Wood connects how our environment, movement, and mindset shape cognitive longevity and peak performance. Whether you're a coach, athlete, or simply striving to think and feel better, this conversation will help you unlock the full potential of your mind and body.References:Substack: https://www.betterbrain.fitness/The Stimulated Mind by Dr. Tommy Wood: https://www.penguinrandomhouse.com/books/751292/the-stimulated-mind-by-dr-tommy-wood/_____________________ Today's speakers:Prof Paul Laursen  https://www.paullaursen.com/   Instagram: https://www.instagram.com/drtommywood/_____________________ 

In this episode of The Athlete's Compass, hosts Paul Warloski, Dr. Paul Laursen, and Marjaana Rakai explore the evolving role of the coach in an age where AI platforms like Athletica are redefining personalized training. They discuss what human coaches bring to the table that software can't—empathy, accountability, real-time adaptation, and the power of meaningful connection. The trio dives into when athletes should consider a coach, how to blend AI and human guidance, and why trust, communication, and reflection are the foundations of great coaching relationships. Whether you're new to structured training or chasing your next PR, this conversation will help you decide if—and when—a coach is right for you.Key TakeawaysAI is powerful, but not personal: Platforms like Athletica can optimize training plans, but they can't yet provide emotional intelligence, empathy, or contextual life adjustments.Human coaches see what data misses: Coaches can spot burnout, emotional fatigue, and life stress that don't show up in the metrics.Reflection fuels growth: Great coaches help athletes look back on progress and learn from every block of training.Coaching is a relationship: Chemistry, trust, and honest communication are essential to making it work.It's okay to move on: Trying a coach and realizing it's not the right fit isn't failure—it's part of the learning process.Combining AI + human guidance offers the best of both worlds: data-driven plans with human understanding.Beginners may benefit most: A coach can shorten the learning curve by helping athletes interpret data, pacing, and physiology.Coaching is an investment in health and learning, not just performance.YOUR STRONGEST YEAR STARTS NOW: Commit to your goals with a full year of adaptive Al coaching. Get 15% off your annual plan with code ANNUAL15Offer expires 11:59 PM (GMT+13) on November 16th, 2025, and is valid only on our website. Cannot be combined with another promo code. To change your current subscription to annual, please login to your account – Hit Settings – Subscriptions&Billing.Get Your Annual Plan NowPaul Warloski - Endurance, Strength Training, YogaMarjaana Rakai - Tired Mom Runs - Where fitness meets motherhood.

In this insightful episode, hosts Paul Warloski, Dr. Paul Laursen, and Marjaana Rakai break down the crucial topic of insulin sensitivity and resistance—a metabolic issue that affects not just people with diabetes but endurance athletes too. They explore how insulin works in the body, how chronic exposure to sugar can lead to insulin resistance, and why even fit athletes can suffer from poor metabolic health. Drawing from personal experience, science, and practical tips, they discuss how dietary choices, strength training, stress, and lifestyle all shape our insulin response. Importantly, they offer actionable advice for athletes who want to optimize performance, avoid midsection weight gain, and stay metabolically healthy as they age.Key TakeawaysInsulin is essential for moving glucose into muscle and fat cells but becomes problematic when chronically elevated.Advanced Glycation End Products (AGEs) from persistent high glucose contribute to aging and health decline.You can't outrun a bad diet—even fit athletes can become metabolically unhealthy with excessive sugar intake.Insulin sensitivity declines with age, high stress, or sugar-heavy diets, but can be reversed.Strength training and endurance training increase insulin sensitivity by increasing muscle mass and GLUT4 activity.Common signs of insulin resistance: stubborn fat, reduced performance, fatigue, poor sleep, and high blood pressure.Fasted training and reducing sugar can restore insulin sensitivity and boost fat metabolism.Lifestyle plays a huge role: stress and processed foods drive insulin resistance, especially in aging athletes.Paul Warloski - Endurance, Strength Training, YogaMarjaana Rakai - Tired Mom Runs - Where fitness meets motherhood.

In this episode of The Athlete's Compass, Paul Laursen, Marjaana Rakai, and Paul Warloski break down the concept of periodization — the practice of structuring your training into purposeful phases like base, build, and taper. Drawing from cutting-edge research, Norwegian endurance dominance, and their own coaching experience, they explore how layering aerobic work with strategic intensity helps everyday athletes adapt better, avoid burnout, and peak on race day. From understanding adaptation energy to learning how Athletica supports personalized training, this conversation uncovers why slow, steady base work might be the most powerful (and overlooked) part of endurance training.Key TakeawaysBase training is critical: It builds aerobic capacity and sets the stage for effective high-intensity training later.Adaptation energy matters: Without a solid aerobic base, athletes struggle to respond to more intense sessions.Periodization isn't just for pros: Everyday athletes benefit from a structured plan tailored to their goals and life constraints.VO2 max work shouldn't disappear during base phase—tapping into it year-round yields continued adaptation.Athletica allows for flexibility, letting athletes shift between base and build weeks depending on how they're feeling or recovering.Heart rate variability (HRV) can guide periodization, indicating readiness for harder work or a need to rest.Avoid over-racing: Always being in build or race mode leads to fatigue, poor performance, and mental burnout.Nutrition can be periodized too, aligning fueling strategies with session intensity to maximize benefits.Lawrence van Lingen | Move Better, Live BetterDr. Paul Laursen publications on ResearchGateMarjaana Rakai - Tired Mom Runs - Where fitness meets motherhood.

Top Episode Replay:Motivation comes from LOVING

IQBAR is offering our special podcast listeners 20% OFF all IQBAR products, plus get FREE shipping. To get your 20% off, text VANESSA to 64000. That's VANESSA to sixty-four thousand. Message and data rates may apply. See terms for details. Today's episode is a deep-dive recap of my mind-blowing conversation with Dr. Paul Laursen — one of the world's top experts in exercise physiology, high-intensity interval training (HIIT), and fat-adapted performance. If you've ever wondered: Why you feel better fat-fueled than carb-loaded How diet actually drives fat loss more than training Why ketones might be more than a fuel — and actually a proxy for VO₂ max How to optimize your metabolic flexibility using HIIT and protein-forward nutrition …this episode will change how you see your body composition journey — especially if you've been trying to out-exercise a poor diet.

IQBAR is offering our special podcast listeners 20% OFF all IQBAR products, plus get FREE shipping. To get your 20% off, text VANESSA to 64000. That's VANESSA to sixty-four thousand. Message and data rates may apply. See terms for details. Today's guest is Dr. Paul Laursen — exercise physiologist, endurance coach, co-author of HIIT Science: The Science and Application of High-Intensity Interval Training, and co-founder of Athletica.ai. Dr. Laursen has coached athletes to 17 world championships, and his research on HIIT, metabolic flexibility, and low-carb nutrition has shaped how athletes and everyday people train for health and performance. In this episode, we cover: Why diet—not exercise—is the key driver of fat loss (and the clinical study that proved it) How being fat-fueled is actually a proxy for VO₂ max, a key marker of cardiovascular fitness and longevity The difference between burning carbs vs. burning fat during exercise — and why metabolic flexibility matters for performance and health How to use HIIT protocols strategically for fat loss, insulin sensitivity, and body recomposition without overtraining Why low-carb and very low-carb high-fat diets can supercharge fat oxidation, recovery, and cognitive clarity The role of ketones in appetite control, recovery, and brain performance Dr. Laursen's top recommendations for training, nutrition, and recovery to optimize body composition and metabolic health Whether you're an athlete, a weekend warrior, or someone looking to improve body composition and metabolic resilience, this conversation is packed with actionable strategies to help you get leaner, stronger, and more metabolically fit. Connect with Vanessa on Instagram @ketogenicgirl Free High-Protein Keto Guide Get 20% off on the Tone LUX Crystal Red Light Therapy Mask or the Tone Device breath ketone analyzer at Ketogenicgirl.com with the code VANESSA Join the Community! Follow Vanessa on Instagram to see her meals, recipes, informative posts, and much more! Click here @ketogenicgirl Follow @optimalproteinpodcast on Instagram to see visuals and posts mentioned on this podcast. Link to join the Facebook group for the podcast: The content provided in this podcast is for informational purposes only and should not be construed as medical advice. Consult with a healthcare professional before making significant changes to your diet or exercise regimen.

How do we individualize athlete development in chaotic, high-contact sports like rugby and basketball? Dr. Carmen Colomer shares her science-backed system for unlocking performance

BREATH TO PERFORM – SCIENCE‑BACKED TOOLS FOR FASTER RUNNING Dr Eric Harbour didn't start with pace — he started with RESPIRATORY LIMITERS In this lung‑expanding episode of The Training Science Podcast, Paul & Eric translate cutting‑edge breathing research into everyday coaching gold: When your LUNGS, not your LEGS, hit the wall — spotting respiratory choke‑points  Nasal vs. mouth breathing — why, when & how to switch gears  Locomotor‑respiratory coupling (LRC) — syncing steps and breaths for efficiency  CO₂‑tolerance drills & apnea sets — building calm under metabolic fire  The “Breath Tools” framework — practical progressions you can use tomorrow—#TrainingSciencePodcast #HIITScience #AthleticaAI #BreathingScience #BreathTools #RunningPerformance #NasalBreathing #CO2Tolerance #LocomotorRespiratoryCoupling #EnduranceTraining #SportsScience #DataDrivenTraining #CoachingScience #CriticalThinking #ScienceMeetsSportToday's speakers:Prof. Paul Laursen – https://www.paullaursen.com/Dr Eric Harbour – https://www.linkedin.com/in/ericharbour/Reference discussed:Harbour et al. “Breath Tools: A synthesis of evidence‑based breathing strategies to enhance human running.” Frontiers in Physiology (2022). https://www.frontiersin.org/journals/physiology/articles/10.3389/fphys.2022.813243/full

Top Episode Replay What is the MINIMAL amount of carbs

Top Episode ReplayFrom a technology nerd, sailor and entrepreneur, to coaching the world's fastest triathletes and chasing sub 7 hours for the Ironman distance - that's just the start of our next guest's bio!In this episode, we hear from leading Norwegian coach, Olav Aleksander Bu. Olav goes into great detail into his unique personal upbringing and background in technology, farming, sport and entrepreneurship and how he combined this experience alongside the development of a TEAM culture that has put the Norwegian program at the forefront of triathlon. There is so much to absorb in this EXTRA LONG 2 hour episode, especially after coming off Kristian Blummenfelt's recent win at the St. George Ironman World Championships. The conversation includes detailed insight into different types of training for the Norwegian triple powerhouse that is dominating triathlon currently. In the 21st episode of The Training Science Podcast, Paul and Olav have an in-depth conversation into how an athletes' profile can be very different from one athlete to the next, and therefore requires a highly individualized approach (that changes over time!). They also go into the evolution of high-end exercise science methods for chasing long-term improvements, as well as the relentless application of “the right” technology for the athletes.Fancy TRIATHLON and would like to implement sophisticated HIIT like Olav and his team? ➡️➡️ https://hiit-science.thinkific.com/bundles/science-application-of-hiit-triathlon ⬅️⬅️➡️➡️ https://athletica.ai/ ⬅️⬅️_____________________ Today's speakers:Prof. Paul Laursen https://www.paullaursen.com/ Olav Alexander Bu https://www.linkedin.com/in/olav-bu/ _____________________ 

Top Episode Replay:Designing HIIT workouts isn't just about the session you put down on paper.You need to first know the important basics of WHY you are doing them, and this relates critically to the CONTEXT! The impact of TIME ⏱️, INTENSITY

Thomas Losnegard from Olympiatoppen reveals why a small country can produce massive results in elite sport

The world of AI is changing extraordinarily fast. We spoke with Dr. Paul Laursen about the current challenges and developments of the technology.  Learn more about your ad choices. Visit megaphone.fm/adchoices

Top Episode Replay 2x Olympic Gold Medalist, Triathlete extraordinair Alistair Brownlee

You are FIT! BUT are you HEALTHY

Save 20% on all Nuzest Products WORLDWIDE with the code MIKKIPEDIA at www.nuzest.co.nz, www.nuzest.com.au or www.nuzest.comThis week on the podcast, Mikki speaks with Dr. Paul Laursen, renowned sports scientist, endurance coach, and co-founder of Athletica AI. Dr. Laursen has been at the forefront of endurance research, particularly in exploring the evolving role of carbohydrates in fueling elite and age-group athletes. Together, they dive into the science and practical application of high-carbohydrate intake during endurance events, including the evidence behind consuming up to 120 grams per hour, how this practice became a gold standard for elites, and the factors that influence an athlete's ability to efficiently utilize such large amounts.Dr. Laursen sheds light on the physiological impacts of extreme carbohydrate fueling, addressing its potential benefits, limits, and risks, including GI distress, inflammation, and even its connection to overtraining or heart health in some cases. He shares insights into why age-group athletes often struggle when emulating elite practices and offers practical strategies for aligning carbohydrate intake with individual needs and training loads.Mikki and Dr. Laursen also discuss the misconceptions around low-carb approaches in endurance sports, hybrid fueling strategies that combine low- and high-carb periods, and the importance of balancing performance with long-term health. With his years of coaching and research, Dr. Laursen shares invaluable advice for endurance athletes looking to optimize their fueling strategies, whether they're chasing personal bests or aiming for sustainable performance. This is a must-listen for anyone curious about the future of endurance nutrition and how to fuel smarter.Dr. Paul Laursen is a world-renowned sports scientist, endurance coach, and co-founder of Athletica AI, an innovative platform leveraging artificial intelligence to optimize endurance training. With a PhD in Exercise Physiology and years of research experience, Dr. Laursen has published extensively on topics including high-intensity interval training (HIIT), endurance performance, and sports nutrition. His work bridges the gap between cutting-edge science and practical application for athletes at all levels.Dr. Laursen has worked with elite athletes across disciplines, helping them achieve peak performance through personalized training and nutrition strategies. He's also a passionate educator, co-authoring the influential book The Science and Application of High-Intensity Interval Training and contributing to the evolution of endurance sports practices. Known for his holistic approach, Dr. Laursen focuses on the interplay between fueling, recovery, and overall athlete health, making him a leading voice in the field of endurance sports.When he's not advancing endurance science, Dr. Laursen is often found testing his own limits in the field as an endurance athlete, embodying the principles he teaches. His unique blend of scientific expertise and real-world experience continues to shape the way athletes train, fuel, and performhttps://podcast.mikkiwilliden.com/46https://podcast.mikkiwilliden.com/3 https://podcasts.apple.com/ca/podcast/how-to-fuel-for-health/id1490521721?i=1000675196238 https://www.paullaursen.com/ https://athletica.ai/ https://www.mikkiwilliden.com/unlocking-metabolic-mastery-2025  Curranz Supplement: Use code MIKKIPEDIA to get 20% off your first order - go to www.curranz.co.nz  or www.curranz.co.uk to order yours Contact Mikki:https://mikkiwilliden.com/https://www.facebook.com/mikkiwillidennutritionhttps://www.instagram.com/mikkiwilliden/https://linktr.ee/mikkiwilliden

The triathlon season is starting in New Zealand with the Mount Festival of Sport this weekend. Tyler Mislawchuk and Cecilia Perez win the IRONMAN 70.3 in Pucon, Chile. We chat to Andrew Buckrell PhD - Mechanical Engineering and Thermal Management Power Technologist and CEO & Chief Scientist at Endurance Innovation. Andrew returns to the show to discuss recent innovations in cooling technologies, including the development of the Cool Bottle. The Cool Bottle aims to enhance performance by actively cooling the forearms during races. We delve into the science behind cooling mechanisms, the inspiration for the product, its design and the practical applications for athletes. We revisit our chat with Dr Paul Laursen on ice slushies and the Floe Bottle. A product that is capable of dispensing a cooling ice slushie through its wide nozzle design. (0:03:11) – The triathlon season starts this weekend in NZ with the Mount Festival of Sport. Plus Tyler Mislawchuk and Cecilia Perez win at IM703 Pucon, Chile (0:06:32) – Alex Yee targeting a sub 2:10 marathon (0:09:56) – Magnus Ditlev commits to the IRONMAN Pro Series (0:12:02) – Hydration systems on bikes (0:16:03) – Dr Andrew Buckrell PhD (0:42:19) – Ice slushies (0:44:06) – Dr Paul Laursen: Ice slushies and the Floe Bottle LINKS: Mount Festival of Sport at https://mountfestival.kiwi/ IRONMAN 70.3 Pucon, Chile at https://www.ironman.com/im703-pucon Follow Tyler Mislawchuk at https://www.instagram.com/therealmislawchuk/ More about Andrew Buckrell at https://eitech.io/about/ Endurance Innovation at https://eitech.io/ The Endurance Innovation Podcast – Episode #159 The Cool Bottle at https://eitech.io/pod-episode-159-the-cool-bottle/ 4iiii Innovations at https://4iiii.com/ Stac Virtual Wind Tunnel at https://www.staczero.com/vwt/ More about Dr Paul Laursen at https://www.paullaursen.com/ Fitter Radio interview with Paul Laursen at https://sites.libsyn.com/53178/fitter-radio-episode-022-paul-laursen-part-2 The Floe Bottle at https://www.floebottle.com/

There's an important difference between fueling for performance and fueling for health. In today's episode, Dr. Mikki Williden and Dr. Paul Laursen give us their suggestions on how to fuel for health. Learn more about your ad choices. Visit megaphone.fm/adchoices

After a number of inquiries about heart rate zones and the best ways to train, we brought back a very popular episode featuring WHOOP Global Head of Human Performance, Principal Scientist, Kristen Holmes and endurance coach Paul Laursen. Paul is a Zone 2 cardio expert and has competed in 17 Ironman triathlons. He is the Co-Founder and CEO of HIIT Science and co-host of the Training Science Podcast. He's published over 150 scientific manuscripts and had his work cited more than 15,00 times. Kristen and Paul will discuss how Paul got started training and teaching (3:05), the relationship between the cardiovascular system and the nervous system (6:13), defining the different training zones (10:48), creating a weekly program with cardio zones (24:51), staying balanced with your training (29:08), autonomic recovery and Zone 2 as an active recovery tool (35:17), how Zone 2 can be linked to hormone levels (36:57), Paul's paper on metabolism and burning fat (41:51), the best medium for Zone 2 training (47:49), training for longevity and VO2 max (50:51), and how Paul thinks about sleep with his athletes (52:38).Resources:Paul's WebsitePaul's TwitterHIIT ScienceAutonomic Recovery after Exercise in Trained AthletesAthletes: Fit but UnhealthyFat Oxidation during HIITFollow WHOOPwww.whoop.comTrial WHOOP for FreeInstagramTikTokXFacebookLinkedInFollow Will AhmedInstagramXLinkedInFollow Kristen HolmesInstagramLinkedInSupport the Show.