Question: what are the five heart rate zones?
Answer: Heart rate zone 1: 50–60% of HRmax. This is the very low intensity zone. ...  Heart rate zone 2: 60–70% of HRmax. ...  Heart rate zone 3: 70–80% of HRmax. ...  Heart rate zone 4: 80–90% of HRmax. ...  Heart rate zone 5: 90–100% of HRmax.