用的这个
https://marathonhandbook.com/how-to-calculate-your-heart-rate-zones/
There are various maximum heart rate protocols for runners, but here is a simple assessment. You’ll need a heart rate monitor.
- Warm up by running 1-3 miles.
- Run one mile on a track at tempo pace, but with 400 meters to go, ramp up to an all-out effort.
- Sprint the last 100 meters as fast as possible.
- Review your heart rate data from the last 400 meters and the highest number recorded is your maximum heart rate.