The purpose of this study was to investigate whether gait speed and sedentary behavior are related to IADL in older people using a daycare center.
In this cross-sectional study, we examined 98 older people who received rehabilitation at a daycare center in Japan from January to March 2024. Participants were 65 years or older, able to walk with or without aids, and provided consent. We excluded those who could not use accelerometers or who missed more than two weeks due to ill health. Participant characteristics such as age, gender, body mass index (BMI), nutritional status, level of long-term care, comorbidities, physical function, physical activity, and IADL were investigated. Pearson’s correlation coefficient and Spearman’s rank correlation coefficient were used to examine the interrelationship between IADL and each measure, and multiple regression analysis examined factors associated with IADL.
IADL of the analyzed subjects (n=41, 82.7±5.3 years, male 48.8%) showed significant interrelationships with gait speed, handgrip strength, number of steps, sedentary behavior, and light physical activity (p0.05). Gait speed showed a significant interrelationship with handgrip strength, 30-s chair stand test, and number of steps, and sedentary behavior was significantly interrelated with BMI, number of steps, and light physical activity (p0.05). Gait speed (p=0.001, 95% CI: 0.944 to 3.453) and sedentary behavior (p=0.004, 95% CI: -0.012 to -0.002) were identified as factors associated with IADL.
Gait speed and sedentary behavior were revealed as independent factors associated with IADL in older people using a daycare center.
Reducing sedentary behavior and increasing gait speed are associated with improvements in IADL and should therefore be considered in rehabilitation programs to improve IADL in older people attending daycare centers.
Sedentary behavior
Older people
