Before revision: The ACSM American Fitness Index Program (Fitness Index) is an initiative of the American College of Sports Medicine that aims to quantitatively measure the overall health and fitness level of American metropolitan areas .
After revision: The ACSM American Fitness Index Program (Fitness Index) is an initiative of the American College of Sports Medicine that aims to quantitatively measure the overall health and fitness level of the 100 largest cities by population in American .