The Athlete's Compass

Athletica

The Athlete’s Compass Podcast is your compass for navigating endurance training and health. In this show, we explore the cardinal directions of training, nutrition, recovery, and mindset, delving into the dynamic relationship that drives athletic success. Athletes are more than numbers; they're individuals with unique lifestyles and mindset challenges. Coaches who understand these personal nuances play a vital role in their athletes' journey. While training details and data are important, tools like Athletica provide a solution to streamline the technicalities, allowing coaches to focus on the human connection which makes the human coaches the best they can be. Each week, renowned sports scientist and researcher Paul Laursen will be our teacher and guide as we break down training principles so you can understand how best to train for your sport! We take a no-bullshit and practical approach to support age-groupers, masters, and everyday cyclists, runners, and triathletes like you as you find your direction as an athlete. The hosts are Paul Laursen, sports scientist and founder of the Athletica.ai training platform, Marjana Rakai, coach, sports scientist, and triathlete, and Paul Warloski, coach and cyclist.

  1. HACE 6 DÍAS

    Why More Exercise Doesn’t Always Burn More Calories with Dr. Mikki Williden

    In this episode, Dr. Mikki Williden returns to The Athletes Compass to explore the Constrained Energy Model, a concept reshaping how athletes and coaches think about training and fueling. Drawing on the groundbreaking work of Dr. Herman Pontzer, Mikki discusses the biological limits of daily energy expenditure, and why the old model of "more exercise = more calories burned" often backfires, leading to fatigue, weight gain, and hormonal dysfunction. The conversation tackles RED-S, perimenopause, nutrient timing, energy availability, and the limits of tracking tools, all while emphasizing the importance of individual context, intuitive feedback, and informed nutrition. Key Episode TakeawaysThe Constrained Energy Model posits that daily energy expenditure plateaus, even with increased exercise.Energy is redirected from "non-essential" functions like immunity and reproductive health under high training loads.Over-relying on devices or formulas to track calories burned can lead to overfueling, weight gain, or gut issues.RED-S (Relative Energy Deficiency in Sport) can impair hormones, recovery, and bone health, especially in female athletes.Basal metabolic rate (BMR) forms the majority of energy use, but varies with sex, age, lean mass, and training history.Fueling needs are individual: what works for Michael Phelps or Killian Jornet won’t work for everyone.Tools like calorie counters can be helpful for education, but not as rigid frameworks.Protein and strength training are critical, especially for perimenopausal women looking to protect bone and muscle mass. Mikkipedia | Dr. Mikki Williden’s podcast, covering topics such as nutrition, fitness, and longevity.Paul Warloski - Endurance, Strength Training, YogaMarjaana Rakai - Tired Mom Runs - Where fitness meets motherhood.

    50 min
  2. 29 ENE

    The Athlete’s Guide to Smarter Warmups

    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 Takeaways Post-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.

    45 min
  3. 22 ENE

    How a Late Start Led to World Championships: Jerome’s Triathlon Story

    In this episode, triathlete Jerome Guionnet shares his inspiring transformation from a non-competitive French parent to a world-class age-group triathlete competing in multiple Ironman World Championships. Sparked by his daughter’s interest in triathlon, Jerome began his journey in his 50s and now regularly finishes in the top 10% of his age group. He discusses the difference between exercising and structured training, the value of consistency, recovery, coaching, and cutting-edge tech like AI coaching and biometric wearables. Jerome also opens up about time management, the importance of strength training, and the surprising mental tricks that keep him going, even in low-motivation moments. Key Episode TakeawaysStarting triathlon later in life is possible with structured training and motivation.Exercising is not the same as training—purposeful structure yields results.AI tools like Athletica help with personalized insights, but coaches bring human touch and emotional intelligence.Consistency, especially with zone 2 training, is essential but often lonely.Time management includes using “bricks” (back-to-back workouts) and home trainers for efficiency.Strength training and activation exercises help prevent injury and improve running form.Transition time is a weakness Jerome plans to improve by doing more local races.Gadgets like Timeware and Cori (continuous lactate monitoring) are part of Jerome’s optimization toolkit.Training is part of a balanced lifestyle that improves work performance and mental health. Paul Warloski - Endurance, Strength Training, YogaMarjaana Rakai - Tired Mom Runs - Where fitness meets motherhood.

    57 min
  4. 15 ENE

    HIIT: The Secret Weapon for Endurance Athletes

    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.

    47 min
  5. 8 ENE

    Why You Need Cross-Training in Your Plan

    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 Takeaways Strength 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.

    34 min
  6. 1 ENE

    ChatGPT meets HIIT Science: Athletica’s New AI Coach

    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.

    38 min
  7. 25/12/2025

    When Data Stops Helping: Escaping the Trap of Training Metrics

    In this episode of the Athletes Compass Podcast, Mollie Brewer—sports scientist and PhD researcher—explores the fine line between using training technology as a helpful tool and becoming overly dependent on it. Drawing from research across collegiate and endurance sports, Mollie explains how GPS watches, power meters, HRV, and AI platforms can either reduce cognitive burden or create “techno stress” when athletes chase numbers instead of listening to their bodies. The conversation highlights data literacy, pacing mastery, individualized training, and why the best outcomes come from triangulating data, bodily awareness, and life context rather than letting metrics dictate every decision. Key Episode TakeawaysTraining technology works best when it supports decision-making, not replaces itChasing metrics can increase anxiety, reduce enjoyment, and harm performanceData can both “get athletes out of their head” and “get athletes into their head”Over-testing and constant measurement can reduce data quality and athlete engagementAthletes need data literacy to understand trends, noise, and contextEffective training comes from triangulating data, bodily feel, and life demandsAI and wearables should adapt to the athlete—not force the athlete to adapt to themSocial sharing of data (e.g., Strava) can amplify techno stress Paul Warloski - Endurance, Strength Training, YogaMarjaana Rakai - Tired Mom Runs - Where fitness meets motherhood.

    50 min

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The Athlete’s Compass Podcast is your compass for navigating endurance training and health. In this show, we explore the cardinal directions of training, nutrition, recovery, and mindset, delving into the dynamic relationship that drives athletic success. Athletes are more than numbers; they're individuals with unique lifestyles and mindset challenges. Coaches who understand these personal nuances play a vital role in their athletes' journey. While training details and data are important, tools like Athletica provide a solution to streamline the technicalities, allowing coaches to focus on the human connection which makes the human coaches the best they can be. Each week, renowned sports scientist and researcher Paul Laursen will be our teacher and guide as we break down training principles so you can understand how best to train for your sport! We take a no-bullshit and practical approach to support age-groupers, masters, and everyday cyclists, runners, and triathletes like you as you find your direction as an athlete. The hosts are Paul Laursen, sports scientist and founder of the Athletica.ai training platform, Marjana Rakai, coach, sports scientist, and triathlete, and Paul Warloski, coach and cyclist.

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