Sedentary Behavior Is Associated with Dynapenia in Older Adults Using Day-care Facilities

[Purpose] This study clarified the relationship between sedentary behavior and dynapenia in community-dwelling elderly using ambulatory service implementation facilities. [Participants and Methods] The subjects were 161 users of two outpatient nursing homes who met the conditions. A cross-sectional design was adopted for this study. Determination of dynapenia was performed via grip strength (28 kg for men, and 18 kg for women) with reference to the definition of the Asian Working Group for Sarcopenia. [Results] Sedentary behavior showed an association with dynapenia even after controlling for age, sex, physical activity, cognitive function, and comorbidities. [Conclusion] Interventions focusing on sedentary behavior are important for preventing the development and exacerbation of geriatric syndromes in the elderly due to the progression of dynapenia.