Heart Rate Insights
Understanding heart rate data is crucial for uncovering the body's cellular processes, especially when transitioning between fat and glycogen as fuel sources. While some experienced runners can gauge their thresholds through breathing patterns, many find heart rate monitoring to be a more reliable method for calibrating their training intensity without the guesswork.In this clip
From this podcast

The Running Explained Podcast
s2/e08 The Science of "Aerobic" & "Anaerobic" Running with Coach Laura Norris (@lauranorrisrunning)
Related Questions
Can you sense when your body shifts from glycogen to fat burning during exercise as discussed in the episode 330. How to Improve the 3 Running Thresholds (Z2, LT, and VO2 Max), with Phil Batterson, PhD and the clip Understanding Energy Shifts?
How are heart rate zones connected to lactate thresholds?
What is the time in a certain heart rate zone where we could consider an activity as aerobic?