Rate Pressure Product (Double Product)
Multiply systolic blood pressure by heart rate to approximate myocardial oxygen consumption during rest or exercise.
How to Use This Calculator
Measure blood pressure and heart rate
Use readings at rest or during graded exercise testing to assess myocardial workload.
Enter values into the calculator
Multiply systolic blood pressure (mmHg) by heart rate (bpm) to obtain rate pressure product.
Interpret changes over time
Compare RPP during rehab or stress testing to gauge conditioning, ischemic thresholds, and antianginal therapy effectiveness.
Formula
Rate Pressure Product = Systolic blood pressure × Heart rate
Units: mmHg · beats per minute. Often reported in thousands (e.g., 12,000).
Full Description
Rate pressure product correlates with myocardial oxygen consumption. It is commonly used in exercise testing, cardiac rehab, and angina evaluation to identify the workload at which ischemic symptoms or ECG changes occur. Lower RPP at a given workload indicates improved efficiency or conditioning, while elevated values highlight increased cardiac workload.
Frequently Asked Questions
What is a typical resting RPP?
Most adults at rest have an RPP between 7,000 and 12,000 mmHg·bpm.
How high can RPP get during exercise?
Well-trained individuals may reach 30,000–40,000 during maximal exertion, whereas lower thresholds may provoke angina in coronary artery disease.
Does diastolic pressure impact RPP?
RPP focuses on systolic pressure, which correlates more directly with myocardial oxygen demand; diastolic pressure affects coronary perfusion separately.
Can medications alter RPP?
Beta-blockers, nitrates, and calcium channel blockers lower heart rate and blood pressure, reducing RPP and angina risk during exertion.