Relationships between sedentary behavior, fall self-efficacy, and instrumental activities of daily living among people requiring short-term rehabilitation and those receiving care -An investigation using activity monitors-

OBJECTIVE: Among users of short-duration day rehabilitation (hereafter, short-duration day rehab), we used activity monitors as an objective measure to characterize sedentary behavior (Sedentary Behavior; hereafter, SB) and examine the effects of fall self-efficacy and performance of instrumental activities of daily living on mean sedentary bout duration. METHODS: The participants were 23 users of short-duration day rehab (78.0 ± 7.9 years, 4 men and 19 women). To characterize SB, we examined total SB time, the proportion of SB, the number of sedentary Break episodes, SB time in bouts lasting 1 hour or longer, and mean sedentary bout duration. SB was measured, and walking ability, fall self-efficacy, and instrumental activities of daily living were assessed in the participants. For statistical analysis, Spearman's rank correlation analysis was performed, followed by multiple regression analysis using the forced-entry method, with FAI, FES-I, and level of care required, which showed significant correlations, as independent variables and mean sedentary bout duration as the dependent variable. RESULTS: The results showed that the regression model was statistically significant (F = 5.375, p < 0.05), suggesting that FAI may significantly affect mean sedentary bout duration (B = -0.44, β = -0.54, p < 0.05). CONCLUSIONS: Mean sedentary bout duration was long among users of short-duration day rehab, and the findings suggested that IADL performance may be more strongly associated with it than psychological aspects or level of care required.