The body burns fat as fuel for exercise at lower intensities (in heart rate zones 1 and 2), whereas it burns carbohydrates as fuel at higher intensities (zones 4 and 5). This, the expert explains ...

zone 2 with 4.5 to 6.5 out of 10, and zone 3 as a 7 or higher out of 10. Heart rate zones are not a perfect measure of exercise intensity, but can be a useful tool. And if you don't want to worry ...

Heart rate zones are how we categorize this effect ... It's the typical zone for a steady running pace. Zone 4 is your ...

Fitness trackers and smartwatches can make it easier to stay in your heart rate training zones. (Getty Creative) ...

target heart rate zones during activity and red flags to consider, plus causes of an elevated heart rate and tips for lowering it. An individual’s resting heart rate is the number of times their ...

If you’ve ever worried about your heart rate during exercise being too high or too low, you’ll want to read this. Your "heart rate zones" might be completely wrong. Not only are zones defined ...

Zone 4 (85-95% of max heart rate): This is where the intensity ramps up. You're working hard and can only sustain it for up to about 15 minutes (depending on where you fall in the 85-95% range). At ...