What is the hierarchy and priority order of the various elements in endurance and triathlon training? Distinguished sports scientist Stephen Seiler has summarised what we know about this from practical experience and research studies in a presentation called "Seiler's Hierarchy of Endurance Training Needs", which I review on this episode.   IN THIS EPISODE YOU'LL LEARN ABOUT: -Training volume -High intensity training -Training Intensity Distribution and Polarised Training -Annual Periodisation -Micro-periodisation -Altitude and heat training -Race training and race pace training -Tapering   SHOWNOTES: https://scientifictriathlon.com/tts120/   THAT TRIATHLON SHOW HOMEPAGE: www.thattriathlonshow.com   SPONSORS: Precision Hydration - One-size doesn't fit all when it comes to hydration. Take Precision Hydration's FREE sweat test and learn how you should hydrate. Use the discount code THATTRIATHLONSHOW and get your first box for free!  Stac - The Stac Zero is the world's quitest bike trainer. No noise and no tire wear, since it doesn't even touch the tire! It is also very portable and affordable. Even more so when using the discount code TTS20 for 20% off when you buy your Stac Zero (any of the models).  LINKS AND RESOURCES: * Seiler’s Hierarchy of Endurance Training Needs - Presentation * Tapering and peaking in triathlon: the art and the science | EP#119 * Triathlon periodisation with Chris Myers | EP#112 * High sweat sodium losses can aid the development of hyponatremia! (PH paper published in The BMJ) RATE AND REVIEW: If you enjoy the show, please help me out by subscribing, rating and reviewing: www.scientifictriathlon.com/rate/   CONTACT: Want to send feedback, questions or just chat? Email me at mikael@scientifictriathlon.com or connect on Twitter - my handle is @SciTriat.