Figure 1: Response of Heart Rate and Blood Pressure over Five Categories of Physical Activity. Mean and 95% CI of the mean using least squares mean. Model was adjusted for by age, smoking status, history of heart attack, history of stroke, history of hypertension, and history of diabetes. Physical activity categories represent (1= 0 MET-minutes; 2= 1-499 MET-minutes; 3= 500-999 MET-minutes; 4= 1000-1499 MET-minutes; 5= MET-minutes or greater).