Heart rate
zones
Karvonen
Age
yrs
Resting HR
optional
bpm
Estimated max HR
184
bpm
Method
Karvonen
Reserve
124
Your 5 zones
bpm
Z1 · Active Recovery
122–134
Z2 · Base Endurance
134–147
Z3 · Tempo / Aerobic
147–159
Z4 · Lactate Threshold
159–172
Z5 · VO2max / Max Effort
172–184
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