April 26, 2026Journal of the American College of Cardiology
Age-predicted maximal heart rate revisited
Key result
New age-based equation strongly predicts HRmax and reveals traditional formula underestimates older adult rates.
- r = -0.90
- n=19,226
Why the study?
Despite widespread use of the 220 - age equation for exercise prescription and diagnostic testing, its validity had never been established in a sample with sufficient older adults.
Does the equation 208 - 0.7 x age better predict maximal heart rate in healthy adults compared to the traditional 220 - age equation?
Population
18,712 subjects across 351 studies plus 514 healthy subjects in a laboratory validation study
Design
Meta-analysis and laboratory-based cross-validation study
Authors
Discussion
Loading...
Member takes
Implication
Consider 208-0.7×age for HRmax prediction in adults; challenges 220-age formula and confirms independence from sex and activity.
Key Points
- Determine a generalized equation for predicting maximal heart rate (HRmax) in healthy adults, focusing on its validity across different age groups.
- Meta-analysis of 351 studies involving 492 groups and 18,712 subjects to gather mean HRmax values.
- Cross-validation of the new equation in a laboratory study with HRmax measured in 514 healthy subjects.
- The meta-analysis showed a strong negative correlation between HRmax and age (r = -0.90), leading to the equation 208 - 0.7 x age.
- The laboratory study confirmed a similar regression equation (209 - 0.7 x age), indicating consistency.
- The findings revealed that the prediction of HRmax is largely independent of gender and physical activity levels.
Study Design
Type
Meta-Analysis (n=19,226)
Structured PICO
Does the equation 208 - 0.7 x age better predict maximal heart rate in healthy adults compared to the traditional 220 - age equation?
P
Population
Healthy adults (meta-analysis: 18,712 subjects from 351 studies; laboratory study: 514 healthy subjects)
I
Intervention
Age-based prediction of maximal heart rate using the equation 208 - 0.7 x age
C
Comparator
Traditional age-predicted HRmax equation (220 - age)
O
Outcome
Maximal heart rate (HRmax)surrogate
Main Result
Effect estimate: r = -0.90
A new regression equation (208 - 0.7 x age) more accurately predicts maximal heart rate in healthy adults, showing that the traditional 220 - age equation underestimates HRmax in older adults.
Cite This Study
Tanaka et al. (2001) conducted a meta-analysis in Healthy adults (n=19,226). New HRmax equation (208 - 0.7 x age) vs. Traditional HRmax equation (220 - age) was evaluated on Maximal heart rate (HRmax) (r = -0.90). A new equation (208 - 0.7 x age) strongly predicts maximal heart rate in healthy adults (r = -0.90), showing the traditional 220 - age formula underestimates HRmax in older adults.