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Lactate Threshold Calculator

Select your plan-specific calculator from the list below, and input the required information from your run from Final Surge. If you misjudged the distance on your test or ran an off-distance race, you can select the Custom Distance to update your values; this must be 90 minutes or less and be a maximum effort. For a walkthrough on how to analyze and obtain this data, select the analysis tutorial.

Once your lactate threshold values are calculated, you will need to configure your Final Surge profile to populate the correct values. For a walkthrough on entering your threshold values and creating your zones, select the zone tutorial.