On this episode of the Run Smarter Podcast, Brodie interviews running coach Nathan Fenton. Nathan uses running power as his primary metric for running program design and assessment. We explore how to measure 'running power' data and what devices you need. Nathan explains the difference between running power compared to heart rate and pace, along with ways do perform 'threshold testing' to determine your own power zones. We also answer your patron questions including: What other metrics can we use (leg stiffness, step length, flight time, contact time)? What power devices are available & what is the most accurate? How can we transition from heart rate training to power training? Lastly, Nathan explains the common mistakes runners make when trying to use power training without the proper guidance and where to find the balance between following the data and listening to the body.  To contact Nathan Fenton click on the links to his website, instagram and facebook (Apple users: Click 'Episode Website' for links to..) Become a patron! Receive Run Smarter Emails Book a FREE Injury chat with Brodie Run Smarter App IOS or Android  Podcast Facebook group Run Smarter Course with code 'PODCAST' for 3-day free trial.