1. From the Departments of Exercise Science (R.P.S., D.-c.L., X.S., V.P., S.N.B.) and Epidemiology and Biostatistics (S.N.B.), Arnold School of Public Health, University of South Carolina, Columbia, SC; School of Nutrition and Health Promotion (S.P.H.), Arizona State University, Phoenix, AZ; Preventive Medicine Laboratory (T.S.C.), Pennington Biomedical Research Center, Baton Rouge, LA.