Plus, a look at the accuracy of heart rate monitors.
Myths about how high your heart rate should go persist.
We break down the basics of how to run based on heart rate.
Check out these simple explanations of when to use which and how they should intersect.
Epson just added another awesome GPS option to the running watch world—except this one also tracks your heart rate.
How can you use heart-rate training to run faster, go farther and stay healthier?