Cardiologists and athletes often monitor heartbeats as a way to gauge health or fitness. But the most popular formula used to calculate maximum heart rate is inaccurate for women because it's based on ... MSN: The heart rate zone formula is flawed, especially for women.

Understanding the Context

Here's how to rethink your training. The heart rate zone formula is flawed, especially for women. Here's how to rethink your training. Tulsa World: Scientists say rate formula is taken too much to heart Medical Xpress: Zone 2, 3, 4?

Key Insights

What do heart rate zones mean for your health? Runners, cyclists and gym-goers with wearable fitness trackers are no doubt familiar with the five "heart rate" zones. Ranging from low to very high intensity, these zones are calculated as ... Zone 2, 3, 4? What do heart rate zones mean for your health?

Final Thoughts

Billings Gazette: Shape Up Montana: Shoot for target heart rate while exercising