Runners, cyclists and gym-goers with wearable fitness trackers are no doubt familiar with the five "heart rate" zones.

For guidance as you run 13.1, aim to keep your bpms between 70 to 90 percent of your maximum heart rate (MHR), depending on ...

Heart rate zones represent different percentages of your maximum heart rate. They can help guide the intensity and effectiveness of your workouts. The benefits of exercise are widespread and include ...

In this era of fitness trackers, we have easy access to our heart rate at any given moment. Every so often, a number catches ...