What is the formula used to calculate double product (DP)?

The formula used to calculate double product (DP) is based on the relationship between heart rate (HR) and systolic blood pressure (SBP). The correct formulation is HR multiplied by SBP, which reflects the heart's workload and myocardial oxygen consumption during physical activity.

Double product serves as an important indicator in exercise physiology, as it helps assess cardiovascular function and the efficiency of oxygen delivery to the muscles during exercise. It provides insight into how hard the heart is working in relation to the blood pressure, allowing for effective monitoring of cardiovascular health and performance during both exercise and recovery.

The specific multiplication by 0.1 in the formula serves to convert the units appropriately, facilitating comparison across different settings or studies. Understanding this calculation is crucial for exercise physiologists and professionals working with individuals in both rehabilitation and performance settings, as it informs them of the cardiovascular stress imposed on the heart during various levels of exertion.