The Science of Speed vs Endurance at Different Running Distances

A 5K and a marathon are objectively different distances - but they are also more similar than you think. If you’ve ever wondered why the 5K is technically a long-distance race, or what the difference between training for a mile and a marathon is, this episode is for you! We’ll discuss the metabolic and mechanical differences of the short, middle, and long distances, plus how those theoretical differences translate into training. Thank you to our sponsors:✨Wahoo KICKR RUN: A treadmill that feels like running outdoors. Shop here: http://bit.ly/4nai73H and read the full review: https://runtothefinish.com/wahoo-kickr-run-treadmill/✨Probio: NSF-certified, clinically dosed, all-in-one supplement. Use this link for 40% off your order or 50% off and free shipping on a subscription.✨Join us on Patreon.com/treadlightlyrunning or subscribe on Apple Podcasts for special subscriber-only content! In this episode, you’ll learn:✅ Which race distances are aerobic, and which are anaerobic?✅ The mechanical differences between short, middle, and long distances✅ The spectrum of muscle fiber typology✅ The different metabolic demands of short, middle, and long distances✅ The training differences across the various distancesIf you enjoyed this episode, you may like:🎧 How Much Do Genetics Impact Your Running Performance? (30 Aug 2024)🎧 How Much Does VO2max Actually Matter? (3 Oct 2025)🎧 What Running Economy Really Means for Your Performance (31 Oct 2025)References:🔬 PMID: 34021488🔬PMID: 29182410🔬PMID: 30299184🔬PMID: 38165636Tread Lightly Running is hosted and researched by Amanda Brooks and Laura Norris, MSc. Production, show notes, and graphics by Laura Norris.Let’s stay connected:➡️ Tread Lightly Running Podcast on Instagram: https://www.instagram.com/treadlightlyrunning/➡️ Laura Norris Running on Instagram: https://www.instagram.com/lauranorrisrunning/➡️ Subscribe for weekly evidence-based newsletters, straight to your inbox, on https://lauranorrisrunning.substack.com/➡️ Run to the Finish on Instagram: https://www.instagram.com/runtothefinish/?hl=en➡️ Thousands of running gear reviews and training guides: https://runtothefinish.com/