Q&A #119 - Running distance and energy expenditure; Heart rate and energy expenditure; Running economy Can energy expenditure (EE, in calories) in running be estimated simply from the distance covered?  Can heart rate be used to accurately estimate EE?  Which device gives the best heart rate based EE estimates: Garmin, Suunto, or Polar?  What is the impact of economy on running EE?  Normative values and benchmarks for running economy   LINKS AND RESOURCES: Scientific Triathlon website Coaching Training Plans Q&A episode archive Apply for the Scientific Triathlon Training Camp Mallorca 2021 Energy Expenditure of Walking and Running: Comparison with Prediction Equations - Hall 2004 Validity of sports watches when estimating energy expenditure during running - Roos 2017 Running economy: measurement, norms, and determining factors - Barnes 2015   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 THATTRIATHLONSHOW15 to get 15% off your order OR use the code THATTRIATHLONSHOW and get your first box for free.   ROKA - The finest triathlon wetsuits, apparel, equipment, and eyewear on the planet. Trusted by Javier Gómez, Gwen Jorgensen, Flora Duffy, Mario Mola, Lucy Charles and others. Visit roka.com/tts for 20% off your order.   RATE AND REVIEW: If you enjoy the show, please help me out by subscribing, rating and reviewing.    CONTACT: Want to send feedback, questions or just chat? Email me at mikael@scientifictriathlon.com or connect on Instagram, Facebook, or Twitter.