TRIMP Method Explorer

Test heart rate
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Tap or drag horizontally on the chart to move the test heart rate marker. Vertical drags scroll the page.

Heart rate and fitness parameters
Method-specific parameters

TRIMP formula
Lactate curve model — Continuous exponential

Every model is fitted to the same set of anchor points: fixed heart-rate/lactate values the curve is required to pass through. The anchors are determined by the parameters you set in the sections above.

What the score means
Evidence and validation
Known limitations
The three heart-rate zones
The lactate curve
How to estimate your lactate threshold
How each setting affects the result
About this explorer