Efficacy of a multicomponent exercise training program intervention in community-dwelling older adults during the COVID-19 pandemic: A cluster randomized controlled trial.

The coronavirus disease 2019 (COVID-19) pandemic caused changes in lifestyle for older adults such as reduced physical activity and community participation. Community activity centers were randomly assigned to the intervention (n = 82) or control arm (n = 85). The intervention comprised one 60 min group exercise session per week in weeks 1-8 and an online home exercise program in weeks 9-16. Physical activity, physical performance, and prefrailty rates were assessed at baseline and 16 weeks. At 16 weeks, compared to the control arm, the intervention arm exhibited improved (p < 0.05) leisure-time physical activity (phi = 0.571), vigorous physical activity (phi = 0.534), and moderate-vigorous physical activity (phi = 0.344); prefrailty rates (phi = 0.179); and short physical performance battery results (η2p = 0.113). The intervention thus effectively improved physical activity levels, physical performance, and prefrailty rates in community-dwelling older adults during the COVID-19 pandemic.