1. 1. Takano K, Sakamoto T, Ookura F. Social participation of aged people and residents association. Bulletin of the Graduate Schools Yamaguchi Prefectural University 2007; 8: 129–137 (in Japanese, Abstract in English).
2. 2. The current situation and the future direction of the Long-term Care Insurance System in Japan –With a Focus on the Housing for the Elderly–. March 7, 2013. Available at:http://www.mhlw.go.jp/english/policy/care-welfare/care-welfare-elderly/dl/ri_130311-01.pdf#search=’The+current+situation+and+the+future+direction+of+the+Longterm+Care+Insurance+System+in+Japan’ Accessed 22 December 2014.
3. 3. The integrated community care based on 5 standpoints, self-help, mutual aid, mutual assistance and public help. Available at: http://www.mhlw.go.jp/seisakunitsuite/bunya/hukushi_kaigo/kaigo_koureisha/chiiki-houkatsu/dl/link1-3.pdf. Accessed 19 January 2014.
4. 4. Kinugasa T, Nagasaki H. Reliability and validity of the Motor Fitness Scale for older adults in the community. Aging (Milano) 1998; 10: 295–302.
5. 5. Lawton MP. The Philadelphia Geriatric Center Morale Scale: a revision. J Gerontol 1975; 30: 85–89.