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Endurance Unlimited

Endurance Unlimited

By: TrainingPeaks
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 Dial in those workouts with deep insights and cutting-edge science from the most prominent voices in the endurance and hybrid sports world. Whether you're a triathlete, cyclist, runner, ultra-endurance athlete or coach, and many other sport types, subscribe now to learn how to train for success. Endurance Unlimited is your endurance training resource. To learn more about how TrainingPeaks can help you achieve your training goals, visit us at trainingpeaks.com.© 2025 TrainingPeaks CoachCast Hygiene & Healthy Living Running & Jogging
Episodes
  • Fueling Insights Explained: Iñigo San-Millán on Optimizing Carbohydrate Intake for Cyclists — Season 7 Ep 9

    Fueling Insights Explained: Iñigo San-Millán on Optimizing Carbohydrate Intake for Cyclists — Season 7 Ep 9
    Aug 7 2025
    You're not seeing things. CoachCast has been renamed Endurance Unlimited. Stay tuned for more great episodes and more. Now, on to this episode... Dr. Iñigo San-Millán explains the science and strategy behind optimal cycling nutrition. Learn how TrainingPeaks' new Fueling Insights feature leverages decades of his metabolic research data to help athletes and coaches evaluate and individualize fueling plans based on athlete metrics, not guesswork. From breaking through the outdated 40-gram carb ceiling to personalizing race-day nutrition for every level of today's cyclist, learn how this tool is changing how we plan, perform and recover. 03:34 Iñigo Intro and Current Roles 07:50 Revamping Carbohydrate Intake for Athletes 12:41 Metabolic Flexibility 14:28 Pioneering Carbohydrate Oxidation Research 19:08 Fat Oxidation Misconceptions in Athletes 21:07 FATMAX: Peak Fat Oxidation Point 26:30 Race Performance and Energy Expenditure 27:48 Balancing Glycogen for Athletes 31:05 Cyclists' Nutrition & Intensity 38:31 Fueling Insights Workout Calculation Steps 39:48 Metabolism Variability Among Individuals 44:32 Risks of Fasted Workouts 47:16 Understanding Gross Efficiency Limitations 56:54 The Nutrition Evolution Learn more about Fueling Insights Learn more about TrainingPeaks Episode 1, Season 5: The Biochemistry of Zone 2
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    1 hr
  • From Couch Potato to World Champion: April Zilg on Coaching and What Makes a Great Paddle Athlete — Season 7 Ep 8

    From Couch Potato to World Champion: April Zilg on Coaching and What Makes a Great Paddle Athlete — Season 7 Ep 8
    Jul 24 2025
    The evolution of paddle sport racing is pushing the limits of endurance competition, where training technology and data-driven coaching play a significant role. April Zilg, world champion paddle athlete, joins the show to share her journey from "couch potato" to the top of the stand up paddle board (SUP) world—all powered by smart training, dedication and data. In this episode, April reveals how technique-focused coaching, a science-based approach to training and leveraging TrainingPeaks shapes her work with athletes of all levels. Get a crash course in the many flavors of paddle sports—from lightning-fast sprints to epic 1,000-mile adventures—and how race type, equipment and environment shape effective training strategies. April stresses the importance of tracking progress, balancing intensity and recovery, and being open to new technology, including heart rate and (soon) power meters on the water. Whether you're curious about SUP racing, endurance coaching, or just want a peek behind the paddle, this episode is full of valuable coaching and training tips.
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    58 mins
  • Gravel's Evolution: Dylan Johnson Talks Unbound, Training, Gear Choices & Strategy — Season 7 Ep 7

    Gravel's Evolution: Dylan Johnson Talks Unbound, Training, Gear Choices & Strategy — Season 7 Ep 7
    Jun 11 2025
    In this episode, host Dirk Friel sits down with professional gravel racer and Ignition Coaching coach Dylan Johnson to dig into all things gravel. They break down the cutting-edge equipment trends seen at the 2025 edition of Unbound Gravel, as well as training trends, nutrition and training tips for both amateurs and pros. Hear why mountain bike tires are dominating the scene, the evolving role of aerodynamics in the sport, and the reasons behind faster race times over the last few years. Whether you're a seasoned cyclist or a gravel-curious newcomer, you'll hear expert advice on your next gravel race and the new "Unbound Block" approach to training. Dylan also offers a glimpse into the future of even faster gravel racing. To learn more about Dylan Johnson, check out his training plans or follow him on YouTube and Instagram.
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    55 mins
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