To get your MHR, subtract your age from 220 ... your body and make adjustments based on how you feel during workouts. Now that you know your fat-burning heart rate, how do you use it to lose ...

Zone 2 is the "fat-burning ... zone 2 heart rate?" It's worth knowing that while you can use a zone 2 heart rate calculator, ...

Your body is burning calories ... trackers use movement, heart rate, and your height and weight to provide some calorie intel, but do not factor in muscle mass or body fat, both of which ...