1. What is Anaerobic Heart Rate?

Anaerobic Heart Rate represents the heart rate at which your body switches to anaerobic metabolism during exercise. This occurs at approximately 90% of your maximum heart rate (MHR) and is typically used for high-intensity interval training.

2. How Does the Calculator Work?

The calculator uses the Anaerobic Heart Rate formula:

Where:

• \( MHR \) — Maximum Heart Rate (bpm)
• \( 0.9 \) — Constant representing 90% of MHR

Explanation: The formula calculates the heart rate threshold where anaerobic metabolism becomes dominant during exercise.

3. Importance of Anaerobic Heart Rate

Details: Knowing your anaerobic heart rate helps in designing high-intensity interval training (HIIT) programs and improving athletic performance by targeting specific energy systems.

4. Using the Calculator

Tips: Enter your maximum heart rate in beats per minute (bpm). For most accurate results, use a measured MHR from a stress test rather than an age-predicted value.

5. Frequently Asked Questions (FAQ)

Q1: How do I determine my maximum heart rate?
A: The most accurate method is through a graded exercise test. The common formula (220 - age) is only an estimate.

Q2: What's the difference between aerobic and anaerobic heart rate?
A: Aerobic zone (70-80% MHR) uses oxygen for energy, while anaerobic zone (90% MHR) relies on stored energy without oxygen.

Q3: How long can I train at anaerobic heart rate?
A: Typically only 30 seconds to 2 minutes at a time due to rapid fatigue, followed by recovery periods.

Q4: Is anaerobic training safe for everyone?
A: No, high-intensity anaerobic exercise should be avoided by those with heart conditions or without proper conditioning.

Q5: How often should I train in the anaerobic zone?
A: 1-2 times per week is sufficient for most people, with adequate recovery between sessions.