[James] has been building a heart rate monitor using a very cool TI chip. He needed a way to test his device, and commercial ECG simulators, like all biotech devices, are absurdly expensive. [James] ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." If you are an athlete in training or simply keeping tabs on your vitals, measuring your heart rate is a ...

Paying attention to your heart rate when training can be an excellent way to monitor your intensity and performance. Not only can this help ensure you stay within the threshold to burn calories ...

A heart rate monitor may be the key to unlocking your fitness goals. That’s because heart rate is a reliable indicator of your exercise input—it reflects the effort applied to every workout. Keeping ...

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 ...