Effects of a Multicomponent Frailty Prevention Program in Prefrail Community-Dwelling Older Persons: A Randomized Controlled Trial

Abstract

Objective: To examine the effects of a multicomponent frailty prevention program in community-dwelling older persons with prefrailty.

Design: A randomized controlled trial.

Setting: A community elderly center in Hong Kong.

Participants: Persons aged ≥50 years who scored 1-2 on a simple frailty questionnaire (FRAIL) METHODS: Participants (n = 127) were randomly assigned to a 12-week multicomponent frailty prevention program (exercise, cognitive training, board game activities) or to a wait-list control group. The primary outcomes were FRAIL scores, frailty status, and a combined frailty measure including subjective (FRAIL total score) and objective (grip strength, muscle endurance, balance, gait speed) measures. The secondary outcomes were verbal fluency assessed by dual-task gait speed, attention and memory assessed by digit span task, executive function assessed by the Frontal Assessment Battery, self-rated health, and life satisfaction. Assessments were conducted at baseline and at week 12.

Results: The mean age of the participants was 62.2 years, and 88.2% were women. At week 12, the FRAIL score had decreased in the intervention group (-1.3, P < .001) but had increased in the control group (0.3, P < .01) (between-group differences P < .001). In addition, 83.3% and 1.6% of the intervention and control groups, respectively, had reversed from prefrailty to robust phenotype (between-group differences P < .001). Participants in the intervention group also had a greater reduction in the combined frailty score and greater improvements in muscle endurance, balance, verbal fluency, attention and memory, executive function, and self-rated health than those in the control group (all P < .05). There were no significant differences between the groups with respect to grip strength, gait speed, and life satisfaction.

Conclusions and implications: The multicomponent frailty prevention program reduced frailty and improved physical and cognitive functions, and self-rated health in community-dwelling older persons with prefrailty. Findings can provide insights into the consideration of incorporating frailty prevention programs into the routine practice of community elderly services.

Keywords: Frailty; multicomponent; randomized controlled trial.