Amongst all that data are your heart rate (HR) zones and training zones. But what are they, and what do they really mean? Here, we unpack these zones, discuss their reliability, and explore how they ...

Heart rate training is accessible and beneficial, guiding workouts based on different heart rate zones. Heart rate zones are ...

(That is probably a higher heart ... heart rate training get a chest strap. Research shows those are more accurate. Knowing your running heart rate means you’ll better stick to the zones you ...