1. National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD
2. Research Center of Movement Science, University of Iceland, Reykjavík, Iceland
3. Icelandic Heart Association, Kópavogur, Iceland
4. Center of Sport and health Sciences, School of Education, University of Iceland, Laugarvatn, Iceland
5. Faculty of Medicine, University of Iceland, Reykjavík, Iceland
6. Department of Social Medicine, CAPHRI School for Public Health and Primary Care, Maastricht University, Maastricht, The Netherlands
7. Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Denmark
8. National Institute on Aging, Bethesda, Maryland