1. From the Division of Kinesiology, Department of Social and Preventive Medicine, Faculty of Medicine, Laval University, Quebec City, Canada (J-PC and AT); the Department of Nutrition, Harvard School of Public Health, Boston, MA (EBR); the Human Genomics Laboratory, Pennington Biomedical Research Center, Baton Rouge, LA (CB); and the Division of Endocrinology, Department of Medicine, Children's Hos