These guidelines stem from a large body of literature demonstrating the protective effects of physical activity and exercise. The earliest study to demonstrate the potential protective effects of physical activity in hypertension prevention was published in 1968 by Paffenbarger et al. who showed that men who self-reported exercising more than 5 hours/week experienced a lower incidence of hypertension two to three decades later in life[6]. Following this observation, the first interventional study to demonstrate the blood pressure (BP) lowering effect of exercise was published in 1970 by Boyer and Kasch who showed that an aerobic interval training program 2 days/week elicited reductions in BP in both hypertensive and normotensive men[7].