Add Yahoo as a preferred source to see more of our stories on Google. Woman wearing sports watch with horse. Garmin has registered a patent for yet another heart rate monitor following the launch of ...

Your next heart-rate monitor may not be a smartwatch at all. Google's latest research hints at a surprisingly simple ...

Heart rate reserve (HRR) is the difference between your resting heart rate and your maximum heart rate. Knowing this number can help you train and work on your fitness goals. Your heart rate reserve ...

Heart rate recovery (HRR) is the capacity for the heart to return to its natural rate after elevation. It generally measures how quickly the heart rate decreases after exercise. Someone’s heart rate ...