What does ATL represent in training?

Acute Training Load (ATL) is a 7-day exponential moving average of daily TSS, representing short-term accumulated fatigue. High ATL (>80 ATL points above CTL) indicates significant fatigue requiring careful recovery management.

How is ATL different from CTL?

ATL responds quickly to training changes (7-day constant) while CTL changes slowly (42-day constant). ATL > CTL (negative TSB) indicates fatigue; after a taper, ATL drops while CTL remains, producing race-ready positive TSB.

Acute Training Load (ATL) Calculator

Calculate Acute Training Load (fatigue) as a 7-day exponential weighted TSS average. Understand short-term accumulated fatigue and recovery needs.

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🏅 Sports Note: These calculators provide estimates based on population data and validated formulas. Individual results vary by physiology, training level, and testing conditions. Consult a qualified coach or sports scientist for personalized guidance.

How to Use

Enter the values for the scenario you are assessing. Calculate Acute Training Load (fatigue) as a 7-day exponential weighted TSS average. Understand short-term accumulated fatigue and recovery needs. Use the acute training load (atl) result to inform your calculation.

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Acute Training Load (ATL) Calculator

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Frequently Asked Questions

What does ATL represent in training?

How is ATL different from CTL?