1. What is Predicted Max Heart Rate?

The predicted maximum heart rate (Max HR) is the highest heart rate an individual can achieve during maximal physical exertion. The most common formula is 220 minus age, which provides a rough estimate for exercise intensity prescription.

2. How Does the Calculator Work?

The calculator uses the standard Max HR equation:

Where:

• \( \text{Age} \) — Age in years

Explanation: This simple formula estimates age-related decline in maximum heart rate, though individual variations exist.

3. Importance of Max HR Calculation

Details: Knowing your estimated max heart rate helps determine appropriate exercise intensity zones for cardiovascular training and safety during physical activity.

4. Using the Calculator

Tips: Simply enter your age in years. The value must be between 1-120 years for valid results.

5. Frequently Asked Questions (FAQ)

Q1: How accurate is the 220-age formula?
A: It's a population average with standard deviation of ±10-12 bpm. Individual max HR can vary significantly.

Q2: Are there alternative formulas?
A: Yes, some suggest 208 - (0.7 × age) or 211 - (0.64 × age) may be more accurate, especially for older adults.

Q3: How is max HR used in exercise?
A: Exercise intensity is often prescribed as percentage of max HR (e.g., 60-70% for moderate, 70-85% for vigorous).

Q4: Does fitness level affect max HR?
A: No, max HR is primarily age-dependent. Fitness affects resting HR and stroke volume, not maximum HR.

Q5: When should I measure actual max HR?
A: For precise training zones, consider graded exercise testing under medical supervision, especially if you have health conditions.