Intervals.icu News 2026-10-28

Our Submaximal Fatigue Test analysis now answers the “do I need to rest?” question, considering recent tests, resting HR, HRV, sleep and more.

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Hey @Antoinette_Tinker, I cannot seem to find the option to perform the test nor see it in my settings. Anything I’m missing?

The feature automatically finds tests in your activities. You don’t need to switch any option on.

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Can’t see it there either :thinking:

It’s within the Settings → Run

You’ll find it only inside one activity, if a test was detected

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Is there a way to separate SFT for treadmill running from outdoor running? There are obvious corrections to treadmill speed vs outdoor speed, heat, etc. that aren’t worth trying to micro-correct in my activities.

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Ah, so it’s only for running? I can’t see it there though:

I have one cycling activity that it separated. In order to trigger the SFT for that activity, you need to have adequate rest. I suspect I activated it by stopping at a light at the top of a hill.

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Scroll down, check your version and for updates

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So when can igpsport open the API to upload health data such as resting heart rate

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No running and cycling are both supported. In theory any sport with pace or power could work. You configure the test parameters (power or pace etc.) separately for each sport in /settings.

It’s for cycling too!