Percentage reduction in initial weight for overweight or obese women assigned to 1 of 4 exercise prescriptions (in addition to a 1200–1500 kcal/d diet): moderate-intensity/moderate-energy expenditure (expend 1000 kcal/wk), moderate-intensity/high-energy expenditure (expend 2000 kcal/wk), vigorous-intensity/moderate-energy expenditure, or vigorous-intensity/high-energy expenditure. Reprinted from Jakicic et al,78 with permission of the publisher. Copyright © 2008, American Medical Association.