Your heart rate zones might be completely wrong. Not only are zones defined differently in different apps, they are also ...

Calculate your heart rate reserve (HRR): MHR - RHR = HRR Apply the Karvonen formula: (HRR x % intensity) + RHR = target heart ...

An easy way to find out is by knowing your target heart rate. A normal resting heart rate is usually between 60 and 100 beats per minute. For healthy people, your target heart rate is where your ...

To get the most out of a cardio workout, you need to get your heart rate into your target heart rate zone. However you keep your heart rate elevated—by running, doing intervals on an elliptical ...