Key result
Standard age-predicted formulas overestimate peak heart rate by ~13 bpm in cardiopulmonary disease.
Why the study?
Age-predicted maximal heart rate may not accurately reflect actual maximal heart rate in patients with cardiopulmonary disease, especially those on beta-blockers.
Does age-predicted maximal heart rate accurately reflect actual maximal heart rate in patients with heart or lung disease?
Population
827 patients aged >20 years with heart or lung disease undergoing symptom-limited maximum treadmill CPET
Comparison
Actual maximal heart rate vs age-predicted maximal heart rate
Design
Retrospective observational study
Authors
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Overestimation by standard formulae may misguide exercise prescription in cardiopulmonary disease; leaves open validation of disease-specific equations in prospective studies.
Observational (n=827)
No
Does age-predicted maximal heart rate accurately reflect actual maximal heart rate in patients with heart or lung disease?
Absolute Event Rate: 159.71% vs 146.56%
p-value: p=<0.001
Standard age-predicted maximal heart rate equations are inaccurate for patients with cardiopulmonary disease, particularly those on beta-blockers, necessitating disease-specific formulae.
Han et al. (2022) conducted an observational in Cardiopulmonary disease (n=827). Age-predicted maximal heart rate formula (220-age) vs. Actual maximal heart rate measured by CPET was evaluated on Maximal heart rate (HRmax) (p=<0.001). The age-predicted maximal heart rate formula significantly overestimated the actual maximal heart rate in patients with cardiopulmonary disease (159.71 vs 146.56 bpm, p<0.001).
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