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Answers from Sheldon G. Sheps, M.D. Yes. If you have a diastolic number â the bottom number of a blood pressure measurement â less than 90 millimeters of mercury (mm Hg) and a systolic number â the top number of a blood pressure measurement â greater than 140 mm Hg, you have a common type of high blood pressure called isolated systolic hypertension.
30 Oct 2012. The systolic blood pressure number (top number) measures the pressure in the arteries when the heart beats (when the heart muscle contracts). The heart rate (pulse rate) is the number of times your heart beats per minute. Here are some more things to know about the correlation between blood pressure and heart rate. There is no good correlation between pulse rate and blood pressure. Measuring pulse rate does not indicate high or low blood pressure.