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Fatigue Index Calculation in AI Coaching

A fatigue index in AI coaching quantifies accumulated wear on your system—mental, physical, and emotional—by integrating heart rate variability, sleep data, session difficulty, and recovery quality into a single readable signal. Rather than guessing whether you're overtrained, you get a real-time picture of how fresh or depleted you actually are, letting the coach adjust immediately.

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Why It Matters

Fatigue index is a quantitative measure that tracks the rate at which performance or output declines over the course of a training session or competition, signaling how well an athlete is managing physical stress. AI coaching systems calculate this metric by monitoring variables such as speed, power output, and response time across repeated efforts.

By continuously updating a fatigue index, AI coaches can recommend session modifications, flag overreaching risks before injury occurs, and help athletes train at the precise intensity that drives progress without compromising recovery.

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