Runners work mostly in their aerobic zones during long trail races or ultras. Photo: Action Asia Events Runners work mostly in their aerobic zones during long trail races or ultras. Photo: Action Asia Events
Runners work mostly in their aerobic zones during long trail races or ultras. Photo: Action Asia Events

Explainer |
What are aerobic and anaerobic zones and how should they shape trail or ultra running training?

  • Training should be split 80/20 ‘easy’ and ‘hard’, even if you have limited time to dedicate to running
  • The understanding behind anaerobic thresholds and oxygen intakes is evolving

Topic |   Extreme fitness
Runners work mostly in their aerobic zones during long trail races or ultras. Photo: Action Asia Events Runners work mostly in their aerobic zones during long trail races or ultras. Photo: Action Asia Events
Runners work mostly in their aerobic zones during long trail races or ultras. Photo: Action Asia Events
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