Zone 2 is a moderate intensity where you can still hold a conversation. This is where your body learns to use fat as fuel and builds its aerobic base.
Why it's so effective
Zone 2 training improves cardiovascular health, increases the number of mitochondria (the cells' power plants) and builds a solid base for more intense efforts — all without burning out your nervous system.
How to find it
Simple rule of thumb: you're breathing harder but can still speak in full sentences. In terms of heart rate (HR), that's usually around 60 to 70% of your maximum. Tracking your heart rate helps you stay in the zone.
Measure to progress
The KEORA Ring tracks your heart rate and activity, to make sure your easy sessions stay truly easy, and that your rest days play their part.
Speed impresses. Endurance lasts. Build your base engine first.