1. What is Predicted Max Heart Rate?

The Predicted Max Heart Rate (PMHR) is the highest heart rate an individual can achieve during maximal physical exertion. The Tanaka formula (PMHR = 217 - 0.85 × age) is a more recent and potentially more accurate estimation than the traditional 220 - age formula.

2. How Does the Calculator Work?

The calculator uses the Tanaka formula:

Where:

• \( age \) — Age in years
• 217 — Baseline constant
• 0.85 — Age coefficient

Explanation: The formula accounts for the gradual decline in maximum heart rate with age, with a more precise coefficient than older formulas.

3. Importance of PMHR Calculation

Details: Knowing your predicted max heart rate helps in designing safe and effective exercise programs, determining appropriate exercise intensity, and establishing heart rate training zones.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: Why use Tanaka formula instead of 220 - age?
A: The Tanaka formula is based on more recent research and may provide a more accurate estimate, especially for older adults.

Q2: What are typical max heart rate values?
A: For most adults, max HR ranges from 160-200 bpm, decreasing by about 0.85 bpm per year.

Q3: How accurate are these predictions?
A: These are population averages - individual max HR can vary by ±10-20 bpm from the predicted value.

Q4: When should actual max HR be measured?
A: For athletes or clinical purposes, a graded exercise test with ECG monitoring provides the most accurate measurement.

Q5: Does fitness level affect max HR?
A: Max HR is largely age-dependent and not significantly affected by fitness level, though athletes can sustain higher percentages of max HR longer.