This discussion has been locked.

You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Lactate Threshold Calculation

I have a 630 and I’m trying to learn how to get the best use of its features.

It has calculated my Lactate Threshold at 159bpm...

I recently ran a 4 mile race and my average HR was 165 and I finished in 32 minutes...165 bpm is 91% of my max heart rate. I thought that running past my lactate threshold would cause me to become very fatigued after only a few minutes, yet a ran the race for 32 minutes at avg165bpm.

Does this sound correct? I’m thinking my lactate threshold should be higher?

would love to hear from runners who have a good feel for this number...

Top Replies

Roedema over 4 years ago +1 suggested

Generally, a person can hold lactate threshold HR (typically 85-90% of HRmax) for about an hour. For some, this is a 10K, for others, a half marathon. A 4-miler or 5K would be run above this. Your numbers…

All Replies

0 Roedema over 4 years ago

Generally, a person can hold lactate threshold HR (typically 85-90% of HRmax) for about an hour. For some, this is a 10K, for others, a half marathon. A 4-miler or 5K would be run above this. Your numbers are typical.

0 5690546 over 4 years ago in reply to Roedema

Excellent...Thank you!