'I did zone 2 cardio every week for an entire year – 8 things I learned'

Slow running has been emerging as an unexpected way to run faster over long distances. Easy, conversational-pace runs can ...

3 Sneaky Signs You’re Not Spending Enough Time in Zone 2, According to Experts

Noticeable changes in heart rate, like a 6 to 10 percent drift, also signal aerobic decoupling, says Norris. For example, if ...
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Zone 2 Running Is the Secret Every Fast Runner Knows. Experts Explain Why It Works So Well

For years, runners have used heart rate-based training to maximize their running potential. This method includes five “zones” at which your heart is beating at a percentage of its maximum capacity. In ...