The Effect of Dual Tasks of Digital Technology on Cognitive Function and Physical Activity in the Older Adults With Cognitive Frailty - A Randomized Controlled Trial

Background: Cognitive frailty is a state that combines physical weakness and cognitive impairment. As age increases, the prevalence rate also increases. Older adults with cognitive frailty are prone to falls, limited or degraded physical functions, and are at high risk of becoming disabled. It is an essential predictor of dementia and mortality. There are currently very few randomized controlled trial studies on cognitive frailty abroad. Although there are many related studies on senile frailty in Taiwan, most studies examine cognitive function and physical frailty separately. Since cognitive frailty is reversible, early intervention can delay or prevent the occurrence of cognitive frailty. Therefore, cognitive-motor dual tasks are introduced. For more information, see the effectiveness of dual-tasking in cases of cognitive decline. Purpose: Goal is to not only explore the feasibility of a motor-cognition dual-task program for elderly individuals with cognitive frailty but also to compare its impact on cognitive and physical function with existing training programs. By doing so, the purpose of this study will be to provide practical insights that can inform the development of effective interventions for this vulnerable population. Methods: A randomized clinical trial was used to explore the effectiveness of a dual-task intervention program on cognitive function and physical activity in older adults with cognitive frailty. Eligible subjects were recruited through convenience sampling and randomly assigned to two groups. The experimental group used Nintendo Switch to perform dual tasks of motor cognition, while the control group performed regular activities. Twice a week, 60 minutes each time, for eight weeks of training. Both groups completed basic information (demographics, disease characteristics, and lifestyle), cognitive function measurements, and physical activity function measurements in the pre-test (T0) in the 4th week (T1) and 8th week (T2). Cognitive function measurements and physical activity function measurements were performed again. Using SPSS 29.0 as a statistical tool, independent sample t-test and Chi-square test were used to detect the demographic variables, disease treatment variables, living habits, cognitive functions, and physical effects of the two groups-homogeneity of activities. A generalized estimating equation (GEE) was used as a statistical method to process and analyze repeated measurement data. The effects of the inter-group and time interaction on the two groups' cognitive function and physical activity were studied differently. Expected research results: This study is expected to construct a suitable dual-task program to introduce the role of physical and cognitive function in this group and explore its effectiveness.