1. National Center for Geriatrics and Gerontology, Obu, Japan.
2. Institute of Gerontology, J.F. Oberlin University, Machida, Japan.
3. Department of Epidemiology, National Center for Geriatrics and Gerontology, Obu, Japan.
4. Department Community Welfare, Niimi University, Niimi, Japan.
5. Department of Preventive Gerontology, National Center for Geriatrics and Gerontology, Obu, Japan.
6. Section of NILS-LSA, National Center for Geriatrics and Gerontology, Obu, Japan.
7. Department of Gerontology Assessment, National Center for Geriatrics and Gerontology, Obu, Japan.
8. Department of Social Preventive Medical Sciences, Center for Preventive Medical Sciences, Chiba University, Chiba, Japan.
9. Research Team for Promoting Independence and Mental Health, Tokyo Metropolitan Institute of Gerontology, Itabashi-ku, Japan.
10. Research Team for Social Participation and Community Health, Tokyo Metropolitan Institute of Gerontology, Itabashi-ku, Japan.
11. Institute of Gerontology, The University of Tokyo, Bunkyo-ku, Japan.
12. Department of Joint Disease Research, 22nd Century Medical and Research Center, The University of Tokyo, Bunkyo-ku, Japan.
13. Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Japan.
14. Tokyo Metropolitan Institute of Gerontology, Itabashi-ku, Japan.
15. Department of Physical Therapy, Faculty of Medicine, School of Health Sciences, Kagoshima University, Kagoshima, Japan.