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Performing a Guided Test to Determine Your Lactate Threshold

Before you can perform the guided test, you must put on a chest heart rate monitor and pair it with your device (Pairing ANT‍+ Sensors). You must also have a VO2 max. estimate from a previous run (About VO2 Max. Estimates).

TIP: The device requires a few runs with a heart rate monitor to get an accurate VO2 max. estimate. The device will automatically detect your lactate threshold during high intensity runs with a chest heart rate monitor.
  1. Select an outdoor running profile.

    GPS is required to complete the test.

  2. Select Menu > My Stats > Lactate Threshold > Do Guided Test.
  3. Follow the on-screen instructions.

    Lactate threshold data
  4. Select an option:

    • Select Accept to save the new lactate threshold.

    • Select Decline to keep your current lactate threshold.

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