Relationship between oral and physical function and length of participation in long-term care prevention programs in community-dwelling older Japanese women.

Abstract

The present study aimed to clarify the relationship between community-dwelling older women's participation period in community-based exercise programs and their oral and physical functioning. From May to September 2019, we recruited 205 older women (mean age: 77.6 ± 5.5years) who had joined weekly long-term care prevention programs such as community-based exercise programs that included oral and physical exercises, in Hiroshima Prefecture, Japan. Physical function was evaluated using a handgrip strength test, a Timed Up & Go test, a one-leg standing test, and a 30-s chair stand test. Tongue pressure, oral diadochokinesis, and Dysphagia Risk Assessment for the Community-dwelling Elderly were measured to evaluate oral functioning. After adjusting for clinical factors (i.e., age, BMI, hypertension, diabetes, stroke, heart disease, joint disease, osteoporosis, remaining teeth, denture use, oral wetness, history of dental examinations in the last year, use of interdental brush and/or dental floss), we compared the oral and physical function parameters of participants from varying program engagement periods using propensity score matching. A significant increase in mean handgrip strength was found in people who had been participating for ≥ 5years compared with those who had been participating for < 5years (p = 0.01). Furthermore, repetition of the monosyllable/ka/was significantly greater for people in the ≥ 5years group compared with those in the < 5 years group (p = 0.03). Long-term participation in an exercise program is positively associated with handgrip strength and tongue motor function in independent older women.