On the surface, the basics of heart rate training are pretty simple.
Keep your heart rate below a certain level, or within a certain zone, during your runs.
Understanding heart rate training, and especially wrapping your head around how running easier/slower most of the time is perhaps the best thing you can do to go faster on race day, is a bit less straightforward.
However you feel about heart rate training, understanding why it’s effective can help you move forward as a runner. Read more