1. Pennington Biomedical Research Center, 6400 Perkins Road, Baton Rouge, LA 70808, USA.
2. School of Kinesiology and Health Studies, Queen’s University, Kingston, ON K7L 3N6, Canada.
3. Physical Health Measures Division, Statistics Canada, 150 Tunney’s Pasture Driveway, Ottawa, ON K1A 0T6, Canada.