INTRODUCTION: We investigated the efficacy of a multidomain intervention (MI) via face‐to‐face and video communication platforms using a tablet personal computer application in patients with mild cognitive impairment (MCI). METHODS: Three hundred participants with MCI and ≥ 1 modifiable dementia risk factor, aged 60‐85 years, were randomly assigned to either the MI group, who underwent a 24‐week intervention, or the control group, who received usual care. RESULTS: The overall adherence rate to MI was 84.7%. The adjusted mean change from baseline at 24 weeks in the total scale index score of the repeatable battery for the assessment of neuropsychological status was 8.43 in the MI group and 4.26 in the control group (difference, 4.17; 95% confidence interval, 1.92‐6.43; p < 0.001). MI showed significant beneficial effects on cognition in both apolipoprotein E (APOE) ε4 carriers and noncarriers. DISCUSSION: MI can exert beneficial effects on the cognition of patients with MCI. Trial Registration : ClinicalTrials.gov identifier: NCT05023057 Highlights: Although the controls also demonstrated improved performance in cognition, multidomain interventions showed significantly greater benefits for cognition in MCI compared to the controls in a randomized controlled trial. Multidomain interventions improved depression and quality of life. Multidomain interventions significantly positively impacted cognition in both APOE ε4 carriers and noncarriers. Multidomain interventions may be more effective for amnestic than nonamnestic MCI.
1 January 2024 in Dementia and Neurocognitive Disorders
There is a need for measures that can prevent the onset of dementia in the rapidly aging population. Reportedly, sustained physical exercise can prevent cognitive decline and disability. This study aimed to assess the feasibility of a 12-week physical exercise intervention (PEI) for delay of cognitive decline and disability in the at-risk elderly population in Korea. Twenty-six participants (aged 67.9 ± 3.6 years, 84.6% female) at risk of dementia were assigned to facility-based PEI (n = 15) or home-based PEI (n = 11). The PEI program consisted of muscle strength training, aerobic exercise, balance, and stretching using portable aids. Feasibility was assessed by retention and adherence rates. Physical fitness/cognitive function were compared before and after the PEI. Retention and adherence rates were 86.7% and 88.3%, respectively, for facility-based PEI and 81.8% and 62.3% for home-based PEI. No intervention-related adverse events were reported. Leg strength/endurance and cardiopulmonary endurance were improved in both groups: 30 s sit-to-stand test (facility-based, p = 0.002; home-based, p = 0.002) and 2 -min stationary march (facility-based, p = 0.001; home-based, p = 0.022). Cognitive function was improved only after facility-based PEI (Alzheimer’s Disease Assessment Scale-cognitive total score, p = 0.009; story memory test on Literacy Independent Cognitive Assessment, p = 0.026). We found that, whereas our PEI is feasible, the home-based program needs supplementation to improve adherence.