The calculation formula is:<unk>  <unk>  = Heart Rate (HR) * Systolic Blood<unk>  (SBP) The units for the Heart Rate are beats per minute and for the Blood<unk>  mmHg.<unk>  is a measure of the stress put on the cardiac muscle based on the number of times it needs to beat per minute (HR) and the arterial blood<unk>  that it is pumping against (SBP). It will be a direct indication of the energy demand of the heart and thus a good measure of the energy consumption of the heart. The<unk>  allows you to calculate the internal workload or hemodynamic response. Hemodynamic Response<unk>  High more than 30000 High Intermediate 25000 - 29999 Intermediate 20000 - 24999 Low Intermediate 15000 - 19999 Low 10000 - 14999
Rate pressure product
Vascular resistance
End-systolic volume
End-diastolic volume
Arterial input function
Afterload
Critical closing pressure
Basal rate