Abstract
Objective : The purpose of this research was to clarify factors associated with functional capacity decline risk over a 6-year period among Independent elderly persons living in the community. Method : In 2004, we surveyed 201 persons with good walking function participating in "Senior College". In 2010, 185 survivors were followed by the Kihon checklist which measures one's functional capacity in the community. Subjects were 146 follow-up survey respondents. Zero for no life-function risks and 1 for risks were set as dependent variables. Multiple logistic regression analysis with independent and moderator variables was performed for significant variables. Results : The 146 follow-up survey respondents were 53 men and 93 women. Twenty-seven (18.5%) were elderly with no functional capacity risks. Factors influencing functional capacity decline were "lower-limb muscle strength (extension)" (OR: 95% CI, 2.01: 1.12-3.62), "experiences of falling during the past year" (18.83: 2.13-166.21), and "persons outside family members living together who nurse or take care of elderly persons coming down with diseases for a few days" (13.53: 3.21-57.02). Discussion : Even independent seniors are likely to have more functional capacity decline risks with aging. In those walking independently, poor leg strength indicates life-function decline. Falling influences life function, reflecting leg-strength decline. Even briefly bedridden elderly persons do not receive non-familial support, likely accelerating functional capacity decline. Conclusion : New factors influencing functional capacity decline were elucidated. For primary prevention of functional capacity decline in independent elderly persons, respecting their intentions and also leg-muscle strength maintenance and enhancement, plus informal community support are important.
