This is the second of a 4 part series on Heart Rate Training for Runners. Listen as our host Richard Diaz, helps you establish critical elements of training and an easy way to effectively check your progress leading up to your next marathon.

Now we get into the nuts and bolts of using heart rate in your training. You will learn when and how to apply aerobic conditioning, how to incorporate effective intervals, how they work together and what time trial mean to your training program here on The Natural Running Network.