Physical Activity Recommendations and Decreased Risk of Mortality

Abstract
Physical activity promotes health and longevity,1,2 and increasing participation in regular exercise has been a major public health goal in the United States for decades.3 The Office of the US Surgeon General (OSG), the Centers for Disease Control and Prevention (CDC), and the American College of Sports Medicine (ACSM) all endorse a minimum of 30 minutes of moderate activity on most days of the week, an amount and intensity of activity that is feasible for most Americans.4,5 Recent nationally representative survey data6 indicate that more than 50% of the adult US population do not meet the lower bound of the physical activity recommendations,4,5 a proportion that has remained essentially unchanged throughout the last decade.7 Commonly reported barriers to activity participation include lack of time and the perceived effort of exercise.8