Peter Attia Zone 2 Formula:
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Peter Attia's Zone 2 heart rate refers to the exercise intensity where lactate production and clearance are balanced. This zone is optimal for building aerobic base, improving mitochondrial function, and enhancing metabolic health without excessive fatigue.
The calculator uses Peter Attia's Zone 2 formula:
Where:
Explanation: This formula calculates Zone 2 heart rate range as 81-89% of your lactate threshold heart rate, which is the intensity where blood lactate begins to accumulate rapidly.
Details: Zone 2 training improves aerobic capacity, increases mitochondrial density, enhances fat oxidation, and builds endurance without excessive stress on the body. It's a foundational component of metabolic health and longevity-focused exercise programs.
Tips: Enter your lactate threshold heart rate in beats per minute (bpm). For accurate results, determine your LTHR through proper testing (such as a graded exercise test with lactate measurement).
Q1: How do I determine my lactate threshold heart rate?
A: The most accurate method is laboratory testing with blood lactate measurement. Field tests (like a 30-minute time trial) can provide estimates.
Q2: How often should I do Zone 2 training?
A: Most recommendations suggest 3-5 sessions per week, typically 45-90 minutes per session, depending on your fitness goals and overall training program.
Q3: Can I use perceived exertion instead of heart rate?
A: Yes, Zone 2 corresponds to an intensity where you can maintain a conversation comfortably (often described as "comfortably hard").
Q4: Does Zone 2 range change with fitness level?
A: Yes, as your fitness improves, your lactate threshold increases, which will shift your Zone 2 heart rate range upward.
Q5: What's the difference between Zone 2 and MAF heart rate?
A: MAF (Maximum Aerobic Function) heart rate uses a different formula (180 - age) and is generally more conservative than Peter Attia's Zone 2 calculation.