抄録
This preliminary study aimed to investigate the relationship between depressive symptoms and physical activity patterns in older adults residing in care facilities, with a focus on diurnal trends. A cross-sectional study involving 14 participants (mean age: 84.3 ± 5.6 years) was con-ducted between January and February 2023 at “Care House Ikeda” in Neyagawa City, Osaka Pre-fecture. Data on physical activity were collected using accelerometer devices worn continuously for seven consecutive days. The 15-item Geriatric Depression Scale was used to assess the depressive symptoms. The prevalence of depressive symptoms was 42.9%, and the average daily step count was 1304. Participants with depressive symptoms exhibited significantly lower levels of light-intensity physical activity, a pattern notably pronounced in the afternoon. Engaging in light-intensity physi-cal activity alleviated depressive symptoms in older adults in facilities. Individuals experiencing depressive symptoms exhibited reduced activity levels, particularly in the afternoon. Further explo-ration into the effects of light-intensity physical activity is warranted.