Estimate your aerobic threshold and anaerobic capacity using two maximal effort tests.
Estimated Critical Power (CP):
0 Watts
Anaerobic Work Capacity (W'):
0 kJ
CP represents the power you can maintain indefinitely, while W' is your fuel tank for efforts above CP.
Critical Power (CP) identifies the boundary between heavy and severe exercise intensities using a linear model of work over time.
Formula: CP = (W2 - W1) / (t2 - t1) where W is Joules and t is seconds.
CP = (W2 - W1) / (t2 - t1)
Example: An athlete completes a 3-minute test at 400W and a 12-minute test at 320W.
W-prime represents your finite anaerobic energy reserve available for work performed above your Critical Power.
Athletes typically re-test every 8-12 weeks or after a dedicated training block to update their training zones.
Two tests of different durations allow the model to separate your aerobic contribution (CP) from your anaerobic capacity (W').
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