Fitness
Fitness–Fatigue Model
The fitness–fatigue model describes performance as a balance between slow-building fitness and fast-spiking fatigue after hard training.
The fitness–fatigue model explains performance as fitness rising slowly with training while fatigue spikes quickly after hard blocks—form is their balance. Taper weeks drop fatigue faster than fitness, producing race-day peaks.
Mis-timed overload leaves you flat, not fast.
Common questions
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How long does fatigue last after a hard block?
Fatigue can linger days to two weeks depending on load, sleep, and nutrition. Fitness fades more slowly—hence structured tapers before key events.
Related terms
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