Building Aerobic Endurance
Elisabeth explains why using run walk intervals based on heart rate and effort, rather than time, is beneficial for runners looking to build their aerobic capacity and eventually run 100% of the time in their easy effort zone.In this clip
From this podcast

The Running Explained Podcast
s2/e18 Run-Walk & How to Use It with Coach Elisabeth
Related Questions
What zone of heart rate should I aim for in intermittent walking training (IWT) by slow and fast walking, as discussed in the episode s2/e18 Run-Walk & How to Use It with Coach Elisabeth and the clip Building Aerobic Capacity?
What zone of heart rate should I aim for in intermittent walking training (IWT) by slow and fast walking as discussed in the episode s2/e18 Run-Walk & How to Use It with Coach Elisabeth and the clip Building Aerobic Capacity?