UK Max Heart Rate Formula:
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The UK Max Heart Rate (MHR) formula estimates a person's maximum heart rate based on their age. This is a more recent formula (2007) that's considered more accurate than the traditional 220-age formula, especially for older individuals.
The calculator uses the UK Max Heart Rate equation:
Where:
Explanation: The formula accounts for the gradual decline in maximum heart rate with age, with a coefficient of 0.7 bpm per year.
Details: Knowing your maximum heart rate helps determine appropriate exercise intensity zones for training and ensures safe cardiovascular workouts.
Tips: Simply enter your age in years (must be between 1-120). The calculator will compute your estimated maximum heart rate.
Q1: Why use the UK formula instead of 220-age?
A: The UK formula (208 - 0.7 × age) is more accurate, especially for older individuals, as research shows the traditional formula overestimates MHR in younger people and underestimates it in older people.
Q2: What are typical MHR values?
A: For a 20-year-old: ~194 bpm; 40-year-old: ~180 bpm; 60-year-old: ~166 bpm. These are estimates and individual variations exist.
Q3: How should MHR be used in exercise?
A: Exercise intensities are often prescribed as percentages of MHR (e.g., 50-70% for moderate, 70-85% for vigorous activity).
Q4: Are there limitations to this formula?
A: Like all population-based formulas, individual variations exist. Those on certain medications or with heart conditions may have different actual maximum heart rates.
Q5: Can I exceed my calculated MHR?
A: The calculated MHR is an estimate. Some individuals may briefly exceed it during intense exercise, but this should be done cautiously and under supervision if needed.