FasCat Cycling Training Tips Podcast

Understand your fatigue to train smarter and more effectively

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Apr 18, 2025
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INSIGHT

Central Fatigue Origins and Effects

  • Central fatigue originates in the brain, affecting the neural output to muscles during exercise or cognitive tasks.
  • More mental focus or cognitive demand increases central fatigue, reducing power output and motivation.
INSIGHT

Peripheral Fatigue Explained

  • Peripheral fatigue is a muscular limitation caused by metabolic and biochemical changes during exercise.
  • It includes reduced ATP resynthesis and accumulation of phosphates and acids that impair muscle contraction.
INSIGHT

Fatigue Depends on Intensity

  • Above lactate threshold exercise mainly causes peripheral fatigue, while below it central fatigue dominates.
  • Long endurance rides typically involve central fatigue, not peripheral, unless intensity increases.
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