Lactate threshold in Suunto Run
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Hi,
In the Suunto Run the CTL widget shows me a very different lactate threshold (152bpm) than ZoneSense does (166 bpm).
Which one should I use to set my HR training zones?
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@Pep-Carbonell only accurate method is a professional lactate measurement on a treadmill.
If you can not do that or you don’t want to spend the money, a field test like a 10km Time-Trial/Race or 1h all-out is the most accurate you can go.
The average HR for the last 20 min is in the ball park of ±3 BPM of your lactate threshold. If you do that 2 or 3 times over the next months to reduce daily influences you will be able to quite accurately narrow down your HR at the lactate threshold.Formulas like 90% of HRmax are way to inaccurate and can be ±20 BPM off. ZoneSense is already more accurate but can still have around ±10 BPM inaccuracy as scientific works could show.
A deviation of 10 BPMs is quite good compared to the other calculation methods but it’s still huge if you want to train correctly in the zones. -
@brave_dave thank you so much, I see…
My last 20 minutes of a 10k race and my Zonesense anaerobic thershold are quite similar (+/-2bpm).
But then, there’s the widget on Suunto Run (the watch) that tells me that my lactate thershold is 12 or 14 bpm lower than the other methods and this confuses me, I guess it’s wrong.
Anyway, thanks again.
