Critical Power

Critical Power is the maximum sustainable rate of work an individual can maintain without fatigue over a prolonged period. Think of it as the threshold between sustainable effort and exhaustion: staying below it allows you to perform consistently without rapidly tiring, while exceeding it leads to rapid fatigue. It reflects a balance between your body's energy production systems, especially your aerobic capacity. In practical terms, knowing your Critical Power helps athletes optimize training and pacing, ensuring they push themselves effectively without overexerting during endurance activities like cycling, running, or rowing.