Regardless of what you are training for, measuring your effort and intensity during a ride is very useful to improve your understanding of performance and fatigue. It allows you to target specific ...

We may earn a commission from links on this page. The Powerbeats Pro 2 are a new set of headphones with a really interesting feature—Apple says they can measure your heart rate during workouts. Huge ...

Tracking your heart rate with a heart rate monitor (HRM) during your runs is one of the most powerful ways to optimize your training, whether you're a dedicated marathoner, power triathlete, or just ...