ZONE
5
Anaerobic threshold and VO2 max
90-100% HRmax
ZONE
4
Speed, power and anaerobic threshold
80-90% HRmax
ZONE
3
Race and competition training
70-80% HRmax
ZONE
2
Endurance and fat-burning
60-70% HRmax
ZONE
1
Warmup, recovery and cooldown
50-60% HRmax
Heart Rate Zones
