How Zone 2 Training Works
How Zone 2 Training Works
Direct Answer
Zone 2 training works by stimulating aerobic adaptations through sustained, low-to-moderate intensity effort that can be repeated frequently with minimal fatigue.
Primary Mechanisms
Zone 2 training increases mitochondrial density, capillary development, fat oxidation capacity, and aerobic efficiency. These adaptations improve energy production and recovery between higher-intensity efforts.
Constraints and Misuse
Zone 2 must be performed at an intensity low enough to avoid excessive fatigue. Training too hard reduces repeatability and shifts stress toward anaerobic systems.
Practical Relevance
Zone 2 training forms the foundation of aerobic capacity and supports durability by allowing consistent volume without overwhelming recovery.
What Is Training Load? | What Is Fatigue? | What Is Recovery?
